WO2021180203A1 - Data transmission method and device, chip system, computer readable storage medium - Google Patents

Abstract

The present application discloses a data transmission method and device, a chip system, and a computer readable storage medium. In said method, a station can receive preamble puncture indication information, the preamble puncture indication information including one or more indications, one indication corresponding to preamble puncture information of one data packet, and according to the preamble puncture indication information, send or receive the data packet. The preamble puncture information including the size and position of preamble puncturing, or there is no preamble puncturing. The preamble puncture information may be an index instructed by the preamble puncture indication information, and thus the preamble puncture condition of the data packet is learned. Hence, compared with the current method of directly instructing multiple resource units, the present application is applicable to 802.11ax, 802.11be and future Wi-Fi system, and using the method of indicating the preamble puncture condition can reduce signaling overheads.

Description

Data transmission method and equipment, chip system, computer readable storage medium

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 202010172790.7, and the application name is "data transmission method and equipment, chip system, computer readable storage medium" on March 12, 2020, and its entire content Incorporated in this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a data transmission method and device, a chip system, and a computer-readable storage medium.

Background technique

Since the development of wireless local area network (WLAN), orthogonal frequency division multiple access (OFDMA) technology has been newly introduced, and the entire bandwidth is divided into multiple resource units (RU). In other words, the allocation of user frequency band resources is not in units of channels, but in units of resources. For example, a 20MHz channel may contain multiple RUs, in the form of 26-tone RU, 52-tone RU, or 106-tone RU. Among them, tone represents the number of sub-carriers. In addition, the RU may also be in the form of 242-tone RU, 484-tone RU, 996-tone RU, etc.

Preamble puncture, or can be translated as preamble puncture. For example, if a part of the 20Mhz channel in the entire bandwidth is empty, it can be said that there are 20MHz holes in the entire bandwidth. For OFDMA transmission, the discrete resources caused by puncturing can be allocated to different sites. For non-OFDMA transmission, such as OFDM (orthogonal frequency division multiplexing) transmission, if preamble puncturing is used, the remaining unpunctured resources will also form multiple RUs, which are combined as a whole Assigned to one or a group of stations (station, STA).

However, how to instruct the multiple RUs to perform data transmission has become an urgent problem to be solved.

Summary of the invention

The embodiments of the present application provide a data transmission method, a data transmission device, a chip system, and a computer-readable storage medium, which can transmit data packets based on preamble puncturing information.

In the first aspect, this application discloses a data transmission method. In this method, a station can receive preamble puncturing indication information, and send or receive the data packet according to the preamble puncturing indication information. Wherein, the preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes the size and position of the preamble puncturing, or the preamble is not punctured . The indication may be an index corresponding to the preamble puncturing indication information, so as to learn the preamble puncturing status of the data packet.

It can be seen that, in this application, the site obtains the preamble puncturing status of the data packet based on the preamble puncturing indication information, and then learns the allocated multi-resource unit. Compared with the current method of directly indicating multiple resource units, the method of indicating the puncturing of the preamble in this application can save signaling overhead.

In an optional implementation manner, sending or receiving the data packet according to the preamble puncturing indication information includes: the preamble puncturing indication information indicates that the preamble is not punctured, and the data packet is not punctured. Send or receive the data packet on the bandwidth of the data packet; or the preamble puncturing indication information indicates the size and position of the preamble puncturing, except for the size and position of the preamble puncturing on the bandwidth of the data packet On the resource unit of, send or receive the data packet. It can be seen that when the data packet has preamble puncturing, the way of indicating the size and position of the preamble puncturing can save indication signaling overhead compared with the way of directly indicating the discrete resource units obtained by the preamble puncturing.

For the preamble puncturing indication information, this application also provides several optional indication methods to indicate the preamble puncturing information. Explained separately below.

In an optional implementation manner, the preamble puncturing indication information includes one or more indications, one indication corresponding to one preamble puncturing information, or an index indicating a situation corresponding to a preamble puncturing.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

In another optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two adjacent 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three adjacent 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four adjacent 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

In another optional implementation manner, 160 MHz includes 80 MHz with the highest frequency and 80 MHz with the lowest frequency, and the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or 40MHz composed of two 20MHz with the lowest frequency within 80MHz with the lowest frequency;

Or 40MHz composed of two 20MHz with the highest frequency within 80MHz with the lowest frequency;

Or 40MHz composed of two 20MHz with the lowest frequency within the highest frequency 80MHz;

Or 40MHz composed of two 20MHz with the highest frequency within the highest frequency 80MHz;

Or the lowest frequency 80MHz;

Or the highest frequency 80MHz;

Or, the preamble within the 160 MHz is not punctured. Wherein, in this implementation manner, the size and position of the preamble puncturing may correspond to the resource unit divided by the channel, which facilitates the determination of the allocated resource unit based on the preamble puncturing indication information.

The 160MHz includes the highest frequency 80MHz and the lowest frequency 80MHz. Optionally, this indication can also be used to indicate the following preamble puncturing information or other indexes as reservations: the intermediate frequency within the highest frequency 80MHz is 40MHz, or The intermediate frequency within the lowest 80MHz is 40MHz. It can be seen that this embodiment supports the same index, corresponding to different meanings, which is beneficial to use different index tables according to different situations, such as different bandwidths or different positions in the preamble puncturing indication information, so as to save the required Index number, that is, the number of bits required for saving instructions.

Optionally, the indication is used to indicate respective indexes corresponding to the one or more preamble puncturing information within 160 MHz. This is beneficial for the station to determine the preamble puncturing situation of the data packet according to the preamble puncturing indication information.

The bandwidth of the data packet is 320 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the preamble puncturing information within 160 MHz with the lowest frequency among the 320 MHz; The second indication is used to indicate the preamble puncturing information in the 160 MHz with the highest frequency among the 320 MHz.

The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication, and the first indication is used to indicate the preamble puncturing information within the 160 MHz.

Optionally, the indication in the preamble puncturing indication information is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

Optionally, the indication in the preamble puncturing indication information is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two adjacent 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three adjacent 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

Optionally, the indication in the preamble puncturing indication information is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or 40MHz with the lowest frequency in the 80MHz;

Or 40MHz of the intermediate frequency within the 80MHz;

Or 40MHz with the highest frequency within the 80MHz;

Or the 80MHz;

Or, the preamble within 80 MHz is not punctured.

That is to say, the indication in the preamble puncturing indication information is used to indicate the respective indexes corresponding to the one or more preamble puncturing information within 80 MHz.

Optionally, the bandwidth of the data packet is 240 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the preamble within 160 MHz with the lowest frequency among the 240 MHz Punching information; the second indication is used to indicate the preamble puncturing information in the highest frequency 80 MHz of the 240 MHz.

Optionally, the bandwidth of the data packet is 240 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate a preamble within 80 MHz with the lowest frequency among the 240 MHz Punching information; the second indication is used to indicate the preamble puncturing information within 160 MHz with the highest frequency among the 240 MHz.

Optionally, the bandwidth of the data packet is 240 MHz, and based on the preamble puncturing information within 80 MHz, the preamble puncturing indication information includes a first indication, a second indication, and a third indication. The first indication It is used to indicate the preamble puncturing information in the 80MHz with the lowest frequency among the 240MHz; the second indication is used to indicate the preamble puncturing information in the 80MHz with the intermediate frequency in the 240MHz, and the third indication is used to Indicate the preamble puncturing information in the 80 MHz with the highest frequency among the 240 MHz. It can be seen that the indication included in the preamble puncturing indication information is related to the bandwidth of the data packet and the frequency range where the preamble puncturing information can be indicated by the indication.

Optionally, the bandwidth of the data packet is 320MHz. Based on the preamble puncturing information within 80MHz, the preamble puncturing indication information includes a first indication, a second indication, a third indication, and a fourth indication. The indication can correspond to a preamble puncturing information within 80MHz. For example, 320MHz includes the lowest frequency 160MHz and the highest frequency 160MHz, the first indication is used to indicate the preamble puncturing information in the lowest frequency 80MHz of the lowest frequency 160MHz; the second indication is used to indicate the frequency The preamble puncturing information in the lowest 160MHz and the highest frequency 80MHz; the third indicator is used to indicate the preamble puncturing information in the lowest frequency 160MHz in the highest frequency 80MHz; the fourth indicator is used to indicate the frequency The preamble puncturing information in the highest frequency 80MHz of the highest 160MHz. It can be seen that the number of indications included in the preamble puncturing indication information may be related to the bandwidth of the data packet and the frequency range where the preamble puncturing information can be indicated by the indication. For example, the above one indication is used to indicate the preamble puncturing indication information within 160 MHz, and the bandwidth of the data packet is 320 MHz, then the preamble puncturing indication information may include at most two such indications.

Optionally, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate a preamble within 80 MHz with the lowest frequency among the 160 MHz Punching information; the second indication is used to indicate the preamble puncturing information in the highest frequency 80 MHz among the 160 MHz.

Optionally, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the preamble puncturing of the first hole in the 160 MHz Information; the second indication is used to indicate the preamble puncturing information of the second hole in the 160MHz. It can be seen that this application supports the case where there are one hole or two holes in the data packet.

In another optional implementation manner, each optional preamble puncturing condition in the bandwidth may use an indicator to indicate each index. In other words, each optional preamble puncturing situation in the bandwidth is located in an index table of the preamble puncturing indication information, which is beneficial to reduce the complexity of the station analyzing the preamble puncturing information according to the index table.

In yet another optional implementation manner, the preamble puncturing indication information includes a first indication and a second indication; the first indication is used to indicate the size of the preamble puncturing; the second indication is used to indicate The position of the preamble punching.

Optionally, the size of the preamble puncturing indicated by the first indication includes one or more of the following: 20 MHz, 40 MHz, 60 MHz, or 80 MHz;

Optionally, the size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of 20 MHz within the bandwidth of the data packet;

The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two of the 40 MHz formed by 20 MHz in the bandwidth of the data packet one;

The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet constitutes 60 MHz of 20 MHz. one;

The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any four of the bandwidth of the data packet constitutes 80 MHz of 20 MHz. one.

Optionally, the size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of 20 MHz within the bandwidth of the data packet;

The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: 40 MHz formed by any two adjacent 20 MHz in the bandwidth of the data packet One of

The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: 60 MHz composed of any three adjacent 20 MHz in the bandwidth of the data packet One of

The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: 80 MHz composed of any four adjacent 20 MHz in the bandwidth of the data packet One of them.

It can be seen that the size of the hole punched by the preamble code is different, and the position options of the corresponding preamble code hole punching are also different. Therefore, the station can determine the size of the hole punctured by the preamble code according to the first instruction, and then determine the position of the hole punctured by the preamble code based on the index table of the position corresponding to the hole.

Optionally, the first indication or the second indication is also used to indicate that the preamble is not punctured.

The method of data transmission based on the preamble puncturing indication information described in this application can be adapted to non-OFDMA transmission, and the method of data transmission based on resource unit allocation subfields can be adapted to OFDMA transmission.

That is, the transmission mode of the data packet is non-OFDMA transmission, and the station performs the step of sending or receiving the data packet according to the preamble puncturing indication information. The transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission, and the station allocates subfields according to the resource unit to send or receive the data packet.

Optionally, the index table of the preamble puncturing indication information and the index table of the resource unit allocation subfield can be combined into one index table, and the preamble puncturing indication information can reuse the resource unit allocation subfield, thereby benefiting the site. According to the index indicated by the preamble puncturing instruction information, the transmission mode of the data packet and the preamble puncturing condition are determined.

Optionally, the station may receive transmission mode indication information, where the transmission mode indication information is used to indicate the transmission mode of the data packet. The transmission mode indication information can be located in the general signaling field or in the common field in the trigger frame.

Regarding the case of performing data transmission according to the resource unit allocation subfield, in an optional implementation manner, the resource unit allocation subfield includes a resource unit indication and a resource unit combination indication.

Optionally, when the first resource unit indicated by the resource unit indication is a resource unit containing 2*996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations: no resources Unit is combined with the first resource unit; or a second resource unit is combined with the first resource unit, and the second resource unit is adjacent or non-adjacent to the first resource unit and includes 484 subcarriers Resource unit; or a combination of a third resource unit and the first resource unit, the third resource unit being a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or a combination of the first resource unit and the first resource unit A resource unit containing 996 subcarriers adjacent to the resource unit at a high frequency; or the second resource unit and the third resource unit are combined with the first resource unit.

Optionally, when the first resource unit indicated by the resource unit indication is a resource unit containing 996 subcarriers, the resource unit combination indicated by the resource unit combination indication includes one or more of the following: no resource unit Combine with the first resource unit; or combine a second resource unit with the first resource unit, and the second resource unit is a resource containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit unit.

In the second aspect, the present application also provides a data transmission device that can implement part or all of the functions of the station in the method example described in the first aspect. For example, the function of the data transmission device can have the functions of the Some or all of the functions in the embodiments may also have the functions of independently implementing any of the embodiments in this application. The functions can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

In a possible design, the structure of the data transmission device may include a processing unit and a communication unit, and the processing unit is configured to support the data transmission device to perform corresponding functions in the foregoing method. The communication unit is used to support communication between the data transmission device and other devices. The data transmission device may further include a storage unit, the storage unit is configured to be coupled with the processing unit and the sending unit, and stores the program instructions and data necessary for the data transmission device.

In an implementation manner, the data transmission device includes:

The communication unit is configured to receive preamble puncturing indication information, where the preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes preamble puncturing. The size and position of the, or the preamble has no perforation;

The communication unit is further configured to send or receive the data packet according to the preamble puncturing instruction information;

Optionally, the data transmission device further includes a processing unit configured to determine multiple resource units to be allocated according to the preamble puncturing indication information.

As an example, the processing unit may be a processor, the communication unit may be a transceiver or a communication interface, and the storage unit may be a memory.

In an implementation manner, the data transmission device includes:

A transceiver for receiving preamble puncturing indication information, where the preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes preamble puncturing The size and position of the, or the preamble has no perforation;

The transceiver is further configured to send or receive the data packet according to the preamble puncturing indication information;

Optionally, the data transmission device further includes a processor, which is configured to determine the multiple resource units to be allocated according to the preamble puncturing indication information.

In a specific implementation process, the processor can be used to perform, for example, but not limited to, baseband related processing, and the transceiver can be used to perform, for example, but not limited to, radio frequency transceiving. The above-mentioned devices may be respectively arranged on independent chips, or at least partly or fully arranged on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip. Such a chip can be called a system on chip. Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the specific needs of product design. The embodiment of the present invention does not limit the specific implementation form of the foregoing device.

In a third aspect, the present application also provides a processor configured to execute the various methods in the first aspect. In the process of executing these methods, the processes of sending the above information and receiving the above information in the above methods can be understood as the process of outputting the above information by the processor and the process of receiving the input information of the processor. Specifically, when outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver for transmission by the transceiver. Furthermore, after the above-mentioned information is output by the processor, other processing may be required before it reaches the transceiver. Similarly, when the processor receives the above-mentioned input information, the transceiver receives the above-mentioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to undergo other processing before being input to the processor.

Based on the foregoing principle, for example, the receiving preamble puncturing instruction information mentioned in the foregoing method can be understood as the preamble puncturing instruction information input by the processor. For another example, sending a data packet can be understood as the processor outputting a data packet.

In this way, if there are no special instructions for the transmitting, sending, and receiving operations involved in the processor, or if it does not conflict with the actual function or internal logic in the relevant description, it can be understood more generally as The processor outputs and receives, inputs and other operations, instead of transmitting, sending, and receiving directly by the radio frequency circuit and antenna.

In a specific implementation process, the foregoing processor may be a processor dedicated to executing these methods, or a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor. The above-mentioned memory may be a non-transitory memory, such as a read only memory (ROM), which may be integrated with the processor on the same chip, or may be separately arranged on different chips. The present invention The embodiment does not limit the type of the memory and the setting mode of the memory and the processor.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing computer software instructions used by the above-mentioned data transmission device, which includes a program for executing the first aspect of the above-mentioned method.

In a fifth aspect, the present application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute the method described in the first aspect.

In a sixth aspect, the present application provides a chip system, which includes a processor and an interface, and is used to support a data transmission device to implement the functions involved in the first aspect, for example, to determine or process the data and data involved in the above method. At least one of the information. In a possible design, the chip system further includes a memory, and the memory is used to store program instructions and data necessary for the site. The chip system can be composed of chips, and can also include chips and other discrete devices.

Description of the drawings

FIG. 1 is a schematic diagram of a network structure provided by an embodiment of the present application;

2 is a schematic diagram of a flow of sending data packets based on a trigger frame according to an embodiment of the present application;

3 is a schematic diagram of another process for sending data packets based on a trigger frame provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a trigger frame structure provided by an embodiment of the present application;

Figure 5 is a schematic diagram of an efficient signaling field structure provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a non-trigger-based data packet provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a channel distribution provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a resource unit distribution provided by an embodiment of the present application;

FIG. 9 is a schematic flowchart of a data transmission method provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a trigger frame structure provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another non-trigger-based data packet provided by an embodiment of the present application;

FIG. 12 is a schematic flowchart of another data transmission method provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a multi-content channel provided by an embodiment of the present application;

14 is a schematic diagram of preamble puncturing information corresponding to each index in Table 3 in an embodiment of the present application;

15 is another schematic diagram of preamble puncturing information corresponding to each index in Table 3 in an embodiment of the present application;

16 is a schematic diagram of the position and size of a preamble puncturing provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of the position and size of another preamble puncturing provided by an embodiment of the present application;

18 is a schematic diagram of the position and size of yet another preamble puncturing provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of the position and size of another preamble puncturing provided by an embodiment of the present application;

20 is a schematic diagram of the position and size of yet another preamble puncturing provided by an embodiment of the present application;

FIG. 21 is a schematic diagram of the position and size of yet another preamble puncturing provided by an embodiment of the present application; FIG.

22 is a schematic diagram of preamble puncturing information corresponding to each index in Table 4 in an embodiment of the present application;

FIG. 23 is another schematic diagram of preamble puncturing information corresponding to each index in Table 4 in an embodiment of the present application;

24 is a schematic diagram of the position and size of yet another preamble puncturing provided by an embodiment of the present application;

FIG. 25 is a schematic diagram of the position and size of yet another preamble puncturing provided by an embodiment of the present application; FIG.

FIG. 26 is a schematic diagram of the position and size of yet another preamble puncturing provided by an embodiment of the present application;

FIG. 27 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application;

FIG. 28 is a schematic structural diagram of a data transmission device provided by an embodiment of this application;

FIG. 29 is a schematic structural diagram of a chip provided by an embodiment of the present application.

Detailed ways

The specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

Take Fig. 1 as an example to illustrate the applicable network structure of the data transmission method described in this application. Figure 1 is a schematic diagram of a network structure provided by an embodiment of the present application. The network structure may include one or more access point (AP)-type sites and one or more non-access point-type sites ( none access point station, non-AP STA). For ease of description, this article refers to the access point type of station as an access point (AP), and the non-access point type of station as a station (STA). Figure 1 takes the network structure including one AP and two stations (STA 1, STA 2) as an example for illustration.

Among them, the access point can be the access point for terminal equipment (such as mobile phones) to enter the wired (or wireless) network. It is mainly deployed in homes, buildings and parks. The typical coverage radius is tens of meters to hundreds of meters. Can be deployed outdoors. The access point is equivalent to a bridge connecting the wired network and the wireless network. The main function is to connect each wireless network client together, and then connect the wireless network to the Ethernet. Specifically, the access point may be a terminal device (such as a mobile phone) or a network device (such as a router) with a wireless fidelity (WiFi) chip. The access point can be a device that supports the 802.11be standard. The access point may also be a device supporting multiple wireless local area networks (WLAN) standards of the 802.11 family such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a. The access point in this application may be a high-efficiency (HE) AP or an extremely high throughput (EHT) AP, or may be an access point that is applicable to a future generation of WiFi standards.

The site can be a wireless communication chip, a wireless sensor, or a wireless communication terminal, etc., and can also be referred to as a user. For example, the site can be a mobile phone that supports WiFi communication function, a tablet computer that supports WiFi communication function, a set-top box that supports WiFi communication function, a smart TV that supports WiFi communication function, a smart wearable device that supports WiFi communication function, and WiFi communication function is supported. Vehicular communication equipment and computers supporting WiFi communication function, etc. Optionally, the station can support the 802.11be standard. The site can also support multiple wireless local area networks (WLAN) standards of the 802.11 family such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

The access point in this application may be a high-efficiency (HE) STA or an extremely high throughput (EHT) STA, or may be an STA applicable to a future generation of WiFi standards.

For example, access points and sites can be devices used in the Internet of Vehicles, Internet of Things (IoT) nodes, sensors, etc., smart cameras, smart remote controls, smart water meters, and electricity meters in smart homes. And sensors in smart cities, etc.

Although the embodiments of this application mainly take the deployment of IEEE 802.11 networks as an example for description, those skilled in the art can easily understand that various aspects involved in this application can be extended to other networks that adopt various standards or protocols, for example, BLUETOOTH (Bluetooth), High-performance wireless LAN (high performance radio LAN, HIPERLAN) (a wireless standard similar to the IEEE 802.1 1 standard, mainly used in Europe) and wide area network (WAN), wireless local area network (WLAN), personal area network (personal area network, PAN) or other networks that are now known or developed in the future. Therefore, regardless of the coverage and wireless access protocol used, the various aspects provided in this application can be applied to any suitable wireless network.

The following will describe the embodiments of the present application, and the embodiments of the present application do not limit the protection scope and applicability of the claims. Those skilled in the art can make adaptive changes to the functions and deployment of the elements involved in this application, or omit, replace or add various processes or components as appropriate without departing from the scope of the embodiments of this application.

In order to facilitate the understanding of the relevant content of the embodiments of the present application, some concepts related to the embodiments of the present application are described.

1. Data grouping

The data transmission method described in this application can be adapted to uplink transmission and can also be adapted to downlink transmission. In addition, the data transmission method is also suitable for point-to-point single-user transmission, or downlink multi-user transmission, or uplink multi-user transmission. Among them, for uplink multi-user transmission, the data transmission method uses an uplink transmission method based on a trigger frame. The following respectively introduces the data grouping based on the trigger frame and the data grouping that is not based on the trigger.

1.1 Data grouping based on trigger frame

The data packet can be a high-efficient trigger-based physical layer protocol data unit (HE TB PPDU). The process of sending HE TB PPDU based on the trigger frame is shown in Figure 2. After the station receives the trigger frame, it can send HE TB PPDU according to the trigger frame. As shown in Figure 2, after the station receives the trigger frame, it can parse out multiple user fields that match its own associated identifier, so that the multiple user fields in the multiple resource units indicated by the resource unit allocation subfield Send HE TB PPDU. Among them, as shown in Figure 2, from HE-STF to Data, the entire bandwidth is divided into one or more resource units.

The functions of each field in the HE TB PPDU structure shown in Figure 2 are shown in Table 1.

Table 1

The data packet can be a very high throughput physical layer protocol data unit based on a trigger frame (Extremely High Throughput trigger based physical layer protocol data unit, EHT TB PPDU), or a future generation of WiFi standard based on a trigger frame physical layer protocol data Unit etc.

The process of sending EHT TB PPDU based on the trigger frame is shown in Figure 3. After the station receives the trigger frame, it can send EHT TB PPDU according to the trigger frame. As shown in Figure 3, after the station receives the trigger frame, it can parse out multiple user fields that match its own associated identifier, so that the multiple user fields on the multiple resource units indicated by the resource unit allocation subfield Send EHT TB PPDU. Among them, as shown in Figure 3, from EHT-STF to Data, the entire bandwidth is divided into one or more resource units. The functions of each field in the EHT TB PPDU shown in Figure 3 are shown in Table 2.

Table 2

The frame format of the trigger frame is shown in FIG. 4. The trigger frame may include only some of the fields shown in FIG. 4, or the trigger frame may include more fields than those shown in FIG. 4, which is not limited in this embodiment of the application. .

For example, the trigger frame includes a common information (common info) field and a user information list (user info list) field. The trigger frame may also include a frame control (frame control) field, a duration (duration) field, a receive address (RA) field, a transmit address (TA) field, a padding (padding) field, and a frame check sequence (FCS, frame check sequence) field, etc. Among them, the public information field may also be referred to as a public domain or a public information domain or a public field. This common field includes the trigger type subfield, the length subfield, the cascade indication subfield, the CS Required subfield, the bandwidth subfield, and the protection The interval + long training sequence (GI+LTF) subfield, the trigger dependent common info subfield based on the trigger frame type, and other common information that need to be read by all stations. Among them, the user information list field may also be referred to as a user information list field, a site-by-site domain, or a site-by-site field, etc. The user information list field includes one or more user info fields (also called user fields), and each user field includes information that each site needs to read, such as the Association Identifier (AID) subfield , Resource unit allocation (RU allocation) subfield and coding type (coding type) subfield, Modulation and Coding Scheme (MCS) subfield, reserved (reserved) subfield, user information based on trigger frame type ( trigger dependent user info) subfields, etc.

Wherein, the associated identification field is used to indicate the associated identification of the site corresponding to the user field; the resource unit allocation subfield is used to indicate the resource unit (or resource unit location) allocated to the site indicated by the user field. The "field" described herein may also be referred to as "domain", "information", etc., and "subfield" may be referred to as "subfield", "information", etc.

1.2 HE MU PPDU

The resource unit allocation mode of HE TB PPDU is different from the resource unit allocation indication mode of HE MU PPDU. In the HE TB PPDU, as shown in Figure 4, the resource unit allocation is indicated in the resource unit allocation subfield in each user field in the trigger frame. For example, an 8-bit resource unit allocation subfield is required in each user field to indicate the resource unit to which the user field is allocated. In the resource unit allocation indication mode of the HE MU PPDU, the resource unit allocation is indicated in the common field in the high-efficiency signaling field. For example, the structure of High Efficient Multiple User Physical Layer Protocol Data Unit (High Efficient Multiple User Physical Layer Protocol Data Unit, HE MU PPDU) in High Efficient Signal Field B (HE-SIG-B) is shown in Figure 5. , Divided into two parts. The first part of the common field (common field) contains 1 to N resource unit allocation subfields (resource unit Allocation subfield), and the middle 26-subcarrier resource unit indication (Center-26-tone RU indication) that exists when the bandwidth is greater than or equal to 80MHz. ) Field, followed by the Cyclic Redundancy Code (CRC) used for verification and the Tail subfield used for cyclic decoding; the second part of the user specific field (User Specific field) is allocated according to resource units There are 1 to M user fields (User Field), and M user fields are usually two as a group. Every two user fields are followed by a CRC and Tail fields, but the last group should be excluded. In a group, there may be one or two user fields.

The extremely high throughput physical layer protocol data unit (EHT PPDU) not only includes the above-mentioned EHT TB PPDU, but also includes the extremely high throughput physical layer protocol data unit that is not based on the trigger frame. Among them, the physical layer protocol data unit that is not based on the trigger frame can be similar to HE MU PPDU, or it can be divided into extremely high throughput single user physical layer protocol data unit (extremely high throughput single user physical layer protocol data unit, EHT SU PPDU) And extremely high throughput multi-user physical layer protocol data unit (extremely high throughput multiple user physical layer protocol data unit, EHT MU PPDU).

Based on Figures 4 and 6, it can be seen that the resource unit allocation mode of EHT TB PPDU is different from the resource unit allocation indication mode of the very high throughput non-trigger-based physical layer protocol data unit. In the resource unit allocation method of EHT TB PPDU, as shown in Figure 4, the resource unit allocation is indicated in the resource unit allocation subfield in each user field. For example, each user field requires an 8-bit resource unit The allocation subfield indicates the resource unit to which the user field is allocated. In the very high throughput non-trigger-based physical layer protocol data unit, the resource unit allocation is indicated in the common field in the very high throughput signaling field, as shown in FIG. 6.

Please refer to FIG. 6, which is a schematic structural diagram of a non-trigger-based physical layer protocol data unit with extremely high throughput provided by an embodiment of the present application. As shown in Figure 6, the data packet includes the traditional short training sequence (legacy short training field, L-STF), the traditional long training sequence (legacy long training field, L-LTF), and the traditional signaling field (legacy signal field, L-STF). -SIG), repeated legacy signal field (RL-SIG), universal signal field (U-SIG), extremely high throughput-signal field, EHT-SIG) and so on. Among them, EHT-SIG is divided into two parts. The first part of the common field (common field) contains 1 to N resource unit allocation subfields (resource unit allocation subfield); the second part of the user specific field (User Specific field), according to the resource There are 1 to M user fields (User Fields) in the order of unit allocation.

2. OFDMA transmission and non-OFDMA transmission

OFDMA transmission is a multi-user communication mechanism, which is suitable for the 802.11ax standard and subsequent data frame exchange between AP and STA. The entire transmission bandwidth can be divided into multiple resource units, which are allocated to different users. In non-OFDMA transmission, the entire transmission bandwidth as a whole is used for single user (single user, SU) or MU-MIMO transmission. For non-OFDMA transmission, after puncturing the preamble, the remaining unpunctured part will form multiple RUs. The combination of multiple RUs supported by non-OFDMA transmission is equivalent to the combination of preamble puncturing supported by non-OFDMA transmission.

3. Resource unit

Taking 20MHz as the basic bandwidth, the bandwidth is an exponential integer multiple of 20MHz (such as 20, 40, 80, 160MHz). In an optional implementation manner, 20MHz is used as a channel. The channel allocation of 802.11 is shown in Figure 7. Figure 7 is a schematic diagram of a channel distribution provided by an embodiment of the present application. When the bandwidth is 160MHz, it can be divided into the main 20MHz channel (or primary channel for short, Primary 20MHz, P20), from 20MHz channel (Secondary 20MHz, S20), from 40MHz channel (Secondary 40MHz, S40), from 80MHz (Secondary 80MHz, 840) channel. In an alternative embodiment, channel 1 may correspond to the main 20 MHz channel, channel 2 may correspond to the slave 20 MHz channel, channel 3 and channel 4 are combined into a 40 MHz channel, and channel 5 to channel 8 are combined into a slave 80 MHz channel. The primary 40MHz channel (or Primary 40MHz, P40 for short) is the 40MHz channel where the primary 20MHz channel is located; the primary 80MHz channel (or Primary 80MHz, P80 for short) is the 80MHz channel where the primary 20MHz channel is located.

In another optional implementation manner, the bandwidth of the data packet may be divided into multiple resource units (RU). Resource units of different sizes can be composed of different numbers of subcarriers. For example, resource units of different sizes may have the following seven types: resource unit (996-tone RU) including 996 subcarriers, resource unit (484-tone RU) including 484 subcarriers, resource unit (484-tone RU) including 484 subcarriers -tone RU), resource unit including 106 subcarriers (106-tone RU), resource unit including 26 subcarriers (26-tone RU), resource unit including 52 subcarriers (52-tone RU), including 2* 996 sub-carrier resource units (2*996-tone RU).

Please refer to FIG. 8. FIG. 8 is a schematic diagram of resource unit distribution within 80 MHz provided by an embodiment of the present application. As shown in Figure 8, the first row indicates that 80MHz can include 37 26-tone RUs, the second row indicates that 80MHz can include 16 52-tone RUs, the third row indicates that 80MHz can include 8 106-tone RUs, and the fourth row indicates that 80MHz can include 8 106-tone RUs. The row indicates that 80MHz can include four 242-tone RUs, the fifth row indicates that 80MHz can include two 484-tone RUs, and the sixth row indicates that 80MHz can include one 996-tone RU. In addition, as shown in Figure 8, there is also an intermediate 26-tone RU composed of 13-tone subunits within 80 MHz of each row. In addition, each row may include some guard subcarriers, empty subcarriers (shaded in FIG. 5), or direct current (DC) subcarriers.

As shown in Figure 8, 20MHz may include 9 26-tone RUs, may include 4 52-tone RUs, may include 2 106-tone RUs, and may include 1 242-tone RU. In addition, each row may include some guard subcarriers, empty subcarriers (shaded in FIG. 5), or direct current (DC) subcarriers.

As shown in Figure 8, 40MHz can include 18 26-tone RUs, 8 52-tone RUs, 4 106-tone RUs, 2 242-tone RUs, and 1 484-tone RU. RU. In addition, each row may include some guard subcarriers, empty subcarriers (shaded in FIG. 5), or direct current (DC) subcarriers.

Regarding the 160MHz bandwidth or the 160MHz bandwidth composed of discrete 80MHz+80MHz, it can be regarded as a combination of two 80MHz resource unit distributions shown in Figure 7, for example, it can include a 2*996-tone RU, or it can include 26-tone. Various combinations of RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU, 996-tone RU.

Among the resource units shown in FIG. 8, the frequencies increase from left to right, the leftmost resource unit can be regarded as the resource unit with the lowest frequency, and the rightmost resource unit can be regarded as the resource unit with the highest frequency. As shown in Figure 7, the 4 242-tone RUs included in 80MHz can be labeled from left to right: the first 242-tone RU, the second 242-tone RU, the third 242-tone RU, and the third 242-tone RU. Four 242-tone RU. Among them, the first 242-tone RU, the second 242-tone RU and the two lowest frequencies within the 80MHz 20MHz correspond one-to-one according to the frequency from low to high; the third 242-tone RU, the fourth The 242-tone RU corresponds to the two highest frequencies of 20MHz within the 80MHz, from low to high in a one-to-one correspondence. Since there is an intermediate 26-tone RU every 80MHz, the above-mentioned 242-tone RU and its corresponding 20MHz do not completely overlap in frequency.

Correspondingly, the two 484-tone RUs included in 80 MHz can be labeled from left to right: the first 484-tone RU and the second 484-tone RU. The lowest frequency 40MHz and the highest frequency 40MHz within the 80MHz correspond to the first 484-tone RU and the second 484-tone RU respectively, from low to high in a one-to-one correspondence.

It can be seen from the above content that for the data grouping based on the trigger frame, the resource unit allocation subfield in each user field in the trigger frame can be used to indicate the allocated resource unit, and the station can identify the user field that is the same as its own associated identifier. Know the allocated resource units from these user fields to transmit data packets based on the trigger frame. For data packets that are not based on the trigger frame, the resource unit allocation subfield in the common field in the signaling field can be used to learn the allocated resource unit, and then the data packet can be received. For example, it is assumed that the resource units allocated to the site may be the first 484-tone RU and the fourth 242-tone RU in the 80 MHz shown in FIG. 7.

However, if there is preamble puncturing in the bandwidth of the data packet, the discrete resources caused by puncturing are all indicated by the above-mentioned resource unit allocation subfield, which will result in higher signaling overhead due to more resource units to be indicated. Big.

In order to reduce the overhead, the embodiment of the present application uses the preamble puncturing indication information to indicate the preamble puncturing information of the data packet to send or receive the data packet. The preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes the size and position of the preamble puncturing, or the preamble is not punctured. In other words, some channels in the bandwidth of the data packet are empty, or there are holes in the bandwidth of the data packet. By indicating the size and location of these holes, the station can receive in resource units or channels other than these holes in the bandwidth. Or send data packets to reduce signaling overhead.

For example, assuming that the size and position of the preamble puncturing are the second 242-tone RU in Figure 8, that is, the second 20MHz of the 80MHz corresponding to the second 242-tone RU, then the discrete puncturing caused The resources are the first 242-tone RU, the third 242-tone RU, and the fourth 242-tone RU. Assuming that for non-OFDMA transmission, the first 242-tone RU, the third 242-tone RU, and the The four 242-tone RUs are all allocated to a site or a group of sites, then the resource unit allocation subfield corresponding to the site needs to indicate the first 242-tone RU, the third 242-tone RU, and the fourth 242-tone RU. Tone RU, or need to indicate the first 484-tone RU and the fourth 242-tone RU respectively. However, this application may indicate that the size and position of the preamble puncturing is the second 20 MHz in 80 MHz. Furthermore, the station determines the allocated resource unit based on the preamble puncturing information, which is the same as the way that at least two resource units need to be indicated. This ratio is conducive to saving the overhead required for resource unit allocation.

The following describes the relevant content of this application or the newly added preamble puncturing indication information in this application in conjunction with the accompanying drawings and the description of the above-mentioned related concepts.

Please refer to FIG. 9, which is a schematic flowchart of a data transmission method according to an embodiment of the present application. The data transmission method shown in FIG. 9 is explained by taking the access point sending the preamble puncturing indication information as an example. Optionally, in the data transmission method described in this application, the station may also send preamble puncturing indication information, and the access point may receive or send data packets according to the preamble puncturing indication information. Specifically, as shown in FIG. 9, the data transmission method includes the following steps:

101. The access point sends preamble puncturing indication information;

Wherein, the preamble puncturing indication information includes one or more indications, and one indication corresponds to one preamble puncturing information. In this application, the preamble puncturing indication information is used by the receiving end to determine the allocated resource unit based on its corresponding preamble puncturing information, that is, the preamble puncturing indication information has the same function as the resource mentioned above. The unit allocation subfield has the same effect. Therefore, for a data packet based on a trigger frame, the preamble puncturing indication information can be included in each user field in the trigger frame; for a data packet that is not based on a trigger frame, the preamble puncturing indication information can be included in the data packet. In the common field in the signaling field.

Optionally, the preamble puncturing indication information may be a newly added field or multiplexing reserved field in the user field of the trigger frame, or a newly added field or multiplexing reserved field in the common field of the signaling field of the data packet. Leave the field.

Optionally, as shown in FIG. 10, compared with FIG. 4, the preamble puncturing indication information may be multiplexed with the resource unit allocation subfield in the user field in the trigger frame. For example, as shown in FIG. 10, it is assumed that the preamble puncturing indication information includes a first indication and a second indication, and the two indications respectively indicate two preamble puncturing information. Optionally, as shown in FIG. 11, compared with FIG. 6, the preamble puncturing indication information may be multiplexed with the resource unit allocation subfield in the EHT-SIG. For example, as shown in FIG. 11, it may be assumed that the preamble puncturing indication information includes a first indication and a second indication, and the two indications respectively indicate two preamble puncturing information.

102. The station receives the preamble puncturing instruction information;

103. The station sends or receives data packets according to the preamble puncturing instruction information.

Among them, if the preamble puncturing indication information is located in the signaling field, as shown in the EHT-SIG shown in FIG. 11, the station can receive or send the preamble puncturing indication information and the data packet as a whole.

Step 103 may include: when the preamble puncturing indication information indicates that the preamble is not punctured, sending or receiving the data packet on the bandwidth of the data packet; when the preamble puncturing indication information indicates the preamble The size and position of the puncturing are to send or receive the data packet on resource units other than the size and position of the preamble puncturing on the bandwidth of the data packet.

In addition, the embodiment of the present application also provides several optional indication methods of the preamble puncturing information. For details, please refer to the following description.

It can be seen that this application can indirectly indicate the allocated resource unit based on the preamble puncturing indication information to send or receive data packets. Compared with the method of directly indicating the allocated resource unit based solely on the resource unit allocation subfield, this application has It is beneficial to reduce the signaling overhead required for resource unit allocation.

Please refer to FIG. 12, which is a schematic flowchart of another data transmission method according to an embodiment of the application. Compared with the data transmission method shown in FIG. 9 in the data transmission method shown in FIG. 12, the access point also sends transmission mode indication information. The transmission mode indication information is used to indicate the transmission mode of the data packet. For example, the station may determine whether the data packet is OFDMA transmission or non-OFDMA transmission based on the transmission mode indication information. For non-OFDMA transmission, the discrete multiple resource units caused by preamble puncturing are uniformly allocated to a user or a group of users, that is, the resource units allocated to each user are the same and usually multiple. Therefore, Compared with the manner in which the resource unit allocation subfield indicates multiple discrete resource units, the present application adopts the preamble puncturing indication information, which can reduce the signaling overhead required for resource unit indication. For OFDMA transmission, the discrete multiple resource units caused by preamble puncturing are allocated to different users, that is, for a user, the resource units that need to be allocated are some of these discrete resource units. Therefore, the resource unit allocation subfield is used to indicate, and the required signaling overhead is relatively small. Therefore, the data transmission method described in FIG. 12 can adopt different resource unit indication methods according to different transmission methods.

Specifically, as shown in FIG. 12, the data transmission method may include the following steps:

201. An access point sends a signaling field or a trigger frame, where the signaling field or trigger frame includes transmission mode indication information and preamble puncturing indication information, or transmission mode indication information and resource unit allocation subfields;

Wherein, the signaling field may include the U-SIG and EHT-SIG shown in FIG. 10, and the trigger frame may have the structure shown in FIG. 11, but is not limited to the signaling fields shown in FIG. 10 and those shown in FIG. 11. The structure of the trigger frame shown. Among them, these signaling fields are located in the PPDU as shown in Figure 10. Therefore, for the physical layer protocol data unit that is not based on the trigger frame, the access point can send the signaling field and the data packet as a whole to the receiver. End, such as a site.

As shown in Figure 10, the transmission mode indication information can be located in the common field in the trigger frame, the bandwidth of the data packet can also be located in the common field, the transmission mode indication information indicates non-OFDMA transmission, and the position of the resource unit allocation subfield is the preamble Code punching instructions. In addition, for non-OFDMA transmission, in the M user fields of each site field, the content of the preamble puncturing indication information may be the same. Wherein, the preamble puncturing indication information may also be referred to as the preamble puncturing indication subfield.

As shown in FIG. 11, the transmission mode indication information may be located in the U-SIG of the data packet, the transmission mode indication information indicates non-OFDMA transmission, and the resource unit allocation subfield in the common field in the EHT-SIG is the preamble puncturing indication information. Wherein, the preamble puncturing indication information may also be referred to as the preamble puncturing indication subfield. The bandwidth of the data packet can also be located in the U-SIG. Wherein, for non-OFDMA transmission, the content of the preamble puncturing indication subfields corresponding to the M user fields may be the same. The order in which the user fields appear in the user-specific field is consistent with the preamble puncturing information indicated by the corresponding preamble puncturing indication subfield. The site can identify itself by reading the STA ID in the user field. Whether the field belongs to itself, combining the position where the user field appears and the corresponding preamble puncturing indication subfield, the site can know its own preamble puncturing information.

In order to effectively multiplex resources, content channels (CC) 1 and CC2 can be used to represent the content in the fields of EHT-SIG or a future generation of WiFi standards when the frequency is greater than or equal to 40 MHz. For example, when the data packet bandwidth is 40MHz, there are two EHT-SIG content channels, CC1 and CC2. As shown in Figure 13, the first EHT-SIG CC1 can include the first in the preamble puncturing indication information. Indication and the corresponding user field; the second EHT-SIG CC2 contains the second indication in the preamble puncturing indication information and the corresponding user field, where the first indication and the second indication respectively correspond to the same user field .

Optionally, CC1 and CC2 may contain the same preamble puncturing indication information and the corresponding user field. By reading the information in CC1 and CC2, the user can fully know the preamble puncturing information on the bandwidth, which is beneficial to increase the reliability of the transmission of the preamble puncturing information. Optionally, the preamble puncturing indication information may also appear on one of the CCs.

202. The station receives the signaling field or trigger frame.

Correspondingly, these signaling fields are located in the PPDU structure as shown in Figure 10. Therefore, for the physical layer protocol data unit that is not based on the trigger frame, the receiving end, such as the station, can integrate the signaling field and the data packet as a whole To receive.

203. When the transmission mode indicated by the transmission mode indication information is OFDMA transmission, the station parses the resource unit allocation subfield from the signaling field or trigger frame, and receives or transmits according to the resource unit allocation subfield. Data grouping

204. When the transmission mode indicated by the transmission mode indication information is non-OFDMA transmission, the station parses the preamble puncturing indication information from the signaling field or the trigger frame, and according to the preamble puncturing indication information, receives or Send data packets.

It should be noted that there is no sequence between step 203 and step 204. In addition, the embodiment of the present application also provides several optional indication methods of the preamble puncturing information. For details, please refer to the following description.

It can be seen that for non-OFDMA transmission, the embodiment of the present application can receive or send data packets according to the preamble puncturing indication information; for OFDMA transmission, data packets can be received or sent according to resource unit allocation subfields. Thereby, the overhead required to indicate the allocated resource unit can be reduced.

In the data transmission methods shown in Figure 9 and Figure 12, the access point sends a data packet that is not based on a trigger frame, such as EHT PPDU. The data packet can carry preamble puncturing indication information as shown in Figure 10; The code puncturing instruction information and the data packet are received as a whole. The access point sends a data packet based on a trigger frame, such as EHT TB PPDU, before sending a trigger frame. As shown in Figure 11, the trigger frame can carry the preamble puncturing indication information, and the station can receive according to the preamble puncturing indication information Data grouping.

The embodiment of this application also provides several optional indication modes of preamble puncturing information:

In the first type, the preamble puncturing indication information includes one or more indications, and one indication is used to indicate one preamble puncturing information;

In the second type, the preamble puncturing indication information includes at least two indications, one of which is used to indicate the size of the preamble puncturing, and the other or more indications are respectively used to indicate the position of the preamble puncturing.

The third type is the preamble puncturing indication information, which is combined with the bandwidth indication information to indicate the preamble puncturing situation in the bandwidth. The broadband indication information may be the bandwidth field shown in FIG. 10 or FIG. 11, which is used to indicate the data packet. Bandwidth.

Among them, the preamble puncturing information described herein can be a specific preamble puncturing situation, such as size and position, or no puncturing, etc., and can also be an index corresponding to the preamble puncturing situation. The three optional indication methods are described below.

The first type, one indication in the preamble puncturing indication information corresponds to one preamble puncturing information

In an optional implementation manner, configured or pre-defined through signaling, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

In this implementation manner, the indication can indicate all possible preamble puncturing information within 160MHz, that is, it can indicate continuous or non-contiguous (adjacent or non-adjacent) 20MHz constituted 40MHz, or 60MHz, or 80MHz to be punctured This is helpful to improve the flexibility of puncturing the preamble.

In another optional implementation manner, configured or pre-defined through signaling, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two adjacent 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three adjacent 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four adjacent 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

In this implementation manner, the indication can indicate the preamble puncturing information with the highest or higher probability of being punctured within 160 MHz, thereby helping to improve the flexibility of the preamble puncturing indication and reducing the bit overhead required for the indication. .

In another optional implementation manner, 160 MHz includes 80 MHz with the highest frequency and 80 MHz with the lowest frequency, and the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or 40MHz composed of two 20MHz with the lowest frequency within 80MHz with the lowest frequency;

Or 40MHz composed of two 20MHz with the highest frequency within 80MHz with the lowest frequency;

Or 40MHz composed of two 20MHz with the lowest frequency within the highest frequency 80MHz;

Or 40MHz composed of two 20MHz with the highest frequency within the highest frequency 80MHz;

Or the lowest frequency 80MHz;

Or the highest frequency 80MHz;

Or, the preamble within the 160 MHz is not punctured.

In this implementation manner, the indication may indicate some possible preamble puncturing information within 160 MHz. For example, the size and position of the preamble puncturing may correspond to the resource unit divided by the channel, thereby facilitating the determination of the preamble puncturing information based on the preamble puncturing indication information. The allocated resource unit, and the number of bits to reduce the indication.

Please refer to FIG. 14, which is a schematic diagram of another channel distribution provided by this application. As shown in FIG. 14, FIG. 14 divides the 160 MHz channel distribution shown in FIG. 7 into indexes corresponding to the size and position of each optional preamble puncturing. That is to say, in FIG. 14, one or more channels corresponding to an index are the size and position of a preamble puncturing in 160 MHz.

Therefore, one of the 20MHz preamble puncturing information in the above 160MHz is the preamble puncturing information corresponding to one of the indexes 0 to 7 in Figure 14; the 40MHz constituted by the two lowest frequency 20MHz within the lowest frequency 80MHz The preamble puncturing information is the preamble puncturing information corresponding to index 8 in Figure 14; the 40MHz preamble puncturing information composed of two 20MHz with the highest frequency within 80MHz with the lowest frequency is corresponding to index 9 in Figure 14. Preamble puncturing information; the 40MHz preamble puncturing information composed of two 20MHz with the lowest frequency within the highest frequency 80MHz is the preamble puncturing information corresponding to index 10 in Figure 14; the highest frequency within 80MHz is the highest frequency The 40MHz preamble puncturing information composed of two 20MHz is the preamble puncturing information corresponding to index 11 in Figure 14; the 80MHz preamble puncturing information with the lowest frequency is the preamble puncturing corresponding to index 12 in Figure 14 Information: The 80MHz preamble puncturing information with the highest frequency is the preamble puncturing information corresponding to index 13 in Figure 14.

Correspondingly, as shown in Table 3, each index in the first column corresponds to each preamble puncturing information. The indication needs to be able to indicate any of the 15 types of preamble puncturing information within 160 MHz, so the indication can occupy 4 bits.

In Table 3, as shown in FIG. 14, the preamble puncturing information corresponding to indexes 0 to 7 is the preamble puncturing information with a size of the preamble puncturing of 20 MHz. For example, the indication is 0000, which can indicate that the position and size of the preamble puncture is the preamble puncturing information corresponding to index 0; the indication is 0001, which can indicate that the position and size of the preamble puncture is the preamble corresponding to index 1. Punch information; etc. Indices 8-11 in Table 3 can respectively indicate preamble puncturing information with a size of 40 MHz preamble puncturing. Indices 12 to 13 in Table 3 can respectively indicate preamble puncturing information with a preamble puncturing size of 80 MHz. Index 14 in Table 3 can respectively indicate that the preamble is not punctured, and index 15 is reserved. The number of indexes indicates the total number of preamble puncturing situations described in each description. For example, the number of indexes in the first row is 8, which means that indexes 0 to 7 correspond to 8 preamble puncturing information with a size of 20 MHz. Correspondingly, the first to third rows in Table 3 can expand the number of indexes, and each row corresponds to an index.

It can be seen that in this indication mode, the index can indicate the position and size of the preamble puncture. Compared with the method of directly indicating the discrete multi-resource unit after the preamble puncturing, the use of the preamble puncturing indication information can reduce the signaling overhead.

In an optional implementation manner, the 160 MHz includes the highest frequency 80 MHz and the lowest frequency 80 MHz, and the indication is also used to indicate one or more of the following preamble puncturing information within 160 MHz: the highest frequency 40 MHz of the intermediate frequency within 80 MHz, or 40 MHz of the intermediate frequency within 80 MHz of the lowest frequency.

In one case, in Fig. 14 or in Table 3, it can be added: Index 15 corresponds to the size and position of the 40 MHz preamble puncturing of the intermediate frequency within the lowest frequency 80 MHz. Among them, 40 MHz of the intermediate frequency within 80 MHz with the lowest frequency is 40 MHz formed by channel 2 and channel 3 as shown in FIG. 7.

In another case, it can be added in Fig. 14 or Table 3: Index 15 corresponds to the size and position of the 40 MHz preamble puncturing of the intermediate frequency within the highest frequency 80 MHz. Among them, 40 MHz of the intermediate frequency within 80 MHz with the highest frequency is 40 MHz formed by channel 5 and channel 6 as shown in FIG. 7.

In another case, the number of bits indicated in the extensible preamble puncturing indication information, such as 5 bits, can be added in Figure 14 or Table 3: Index 15 corresponds to the intermediate frequency in the lowest frequency 80MHz The size and location of the 40MHz preamble puncturing; and the size and location of the 40MHz preamble puncturing with index 16 corresponding to the intermediate frequency within the highest frequency 80MHz.

Table 3 Index table of preamble puncturing indication information in 160MHz (4 bits as an example)

Entry index	describe	Number of entries
0-7	The size of the preamble puncture is 20MHz	8
8-11	The size of the preamble puncture is 40MHz	4
12-13	The size of the preamble puncture is 80MHz	2
14	No punch	1
15	Reserved	1

Correspondingly, based on the resource unit distribution schematic diagram described in FIG. 8, the corresponding relationship between resource units and channels in 160 MHz can be obtained. For example, as shown in FIG. 15, the corresponding relationship between each 20 MHz and 242-tone RU in 160 MHz can be obtained. From left to right, the frequency is from low to high. The size and position of the preamble puncturing corresponding to each index in Table 3 are shown in FIG. 15. The following describes the preamble puncturing information corresponding to the preamble puncturing indication information with reference to FIG. 14 or FIG. 15 and the indexes shown in Table 3 as examples.

The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information may include a first indication, and the first indication is used to indicate a preamble puncturing information within 160 MHz.

For example, as shown in Figure 16, the 160MHz includes 8 20MHz or 8 242-tone RUs. Assuming that the first indication is 0001, the station can determine the size and position of the preamble puncturing of the data packet according to Table 3 as follows: The grid-filled 20MHz in Figure 16; correspondingly, the station can receive or send data packets on the remaining 7 20MHz excluding the grid-filled 20MHz or 7 242-tone RUs corresponding to the remaining 7 20MHz.

For another example, as shown in Figure 17, the 160MHz includes four 40MHz. Assuming that the first indication is 0101, the station can determine the size and position of the preamble puncturing of the data packet according to Table 3 as shown in the grid filling in Figure 17. Correspondingly, the site can receive or send data packets on three 484-tone RUs corresponding to the remaining three 40MHz or the remaining three 40MHz excluding the 40MHz filled by the grid.

The bandwidth of the data packet is 320MHz, and the preamble puncturing indication information includes a first indication and a second indication. The first indication is used to indicate the preamble puncturing information in the 160MHz with the lowest frequency in the 320MHz; the second indication is used to indicate the The preamble puncturing information in the 160MHz with the highest frequency in 320MHz. It can be seen that for multiple resource units on the 320 MHz bandwidth, it is sufficient to use 8-bit preamble puncturing indication information based on Table 3 to indicate.

For example, as shown in Figure 18, 320MHz includes 16 20MHz or 16 242-tone RUs. Assuming that the first indication in the preamble puncturing indication information is 0111 and the second indication is 0000, then the station can determine the preamble puncturing The size and location of is: as shown in Figure 18, 20MHz filled with grids within 160MHz with the lowest frequency and 20MHz filled with grids within 160MHz with the highest frequency; further, the site can be on the remaining channels or resource units within 320MHz, such as In FIG. 9, except for the grid-filled 20MHz, 14 20MHz or 14 242-tone RUs corresponding to the 14 20MHz send or receive data packets. In this case, the equivalent bandwidth is 280MHz.

For another example, as shown in Figure 19, 320MHz includes 16 20MHz, or 16 242-tone RU, or 8 242-tone RU and 4 484-tone RU, assuming that the first indication in the preamble puncturing indication information is 0111, the second indication is 1000, then the site can determine the size and position of the preamble puncturing: as shown in Figure 19, the grid fills 20MHz within 160MHz with the lowest frequency, and the grid within 160MHz with the highest frequency Filled 40MHz; Furthermore, the site can send or receive data packets at each 20MHz or the corresponding 242-tone RU, 484-tone RU except for the grid-filled 20MHz and 40MHz within 320MHz, that is, the equivalent bandwidth is 260MHz.

For another example, as shown in Figure 20, 320MHz includes 16 20MHz, or 16 242-tone RU, or 8 484-tone RU, assuming that the first indicator in the preamble puncturing indicator information is 1000, and the second indicator is 0000 , Then, the site can determine the size and position of the preamble puncturing as: as shown in Figure 20, the grid-filled 40MHz within 160MHz with the lowest frequency and 20MHz with the line grid-filled within 160MHz with the highest frequency; further, The station can send or receive data packets on each 20MHz or corresponding 242-tone RU and 484-tone RU except for 20MHz and 40MHz filled with grids within 320MHz.

For another example, as shown in Figure 21, 320MHz includes 16 20MHz, or 16 242-tone RU, or 8 484-tone RU, assuming that the first indicator in the preamble puncturing indicator information is 1011, and the second indicator is also 1000, then the site can determine the size and position of the preamble puncturing: as shown in Figure 21, the grid-filled 40MHz within the lowest frequency 160MHz, and the grid-filled 40MHz within the highest frequency 160MHz; further, The station can send or receive data packets on channels or resource units without puncturing the remaining preambles within 320MHz, that is, on the equivalent bandwidth of 240MHz.

In an optional implementation manner, the same indication corresponds to different preamble puncturing information under different bandwidth sizes, thereby helping to reduce the number of preamble puncturing information that needs to be indicated by the preamble puncturing indication information, and then Reduce the number of bits required for the preamble puncturing indication information.

In an optional implementation manner, the indication in the preamble puncturing indication information is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

In this embodiment, the indication can indicate all possible preamble puncturing information within 80MHz, that is, it can indicate continuous or non-contiguous (adjacent or non-adjacent) 20MHz constituted 40MHz, or 60MHz is punctured, This helps to improve the flexibility of puncturing the preamble.

In another optional implementation manner, through signaling configuration or pre-definition, the preamble puncturing information in 80 MHz includes one or more of the following:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two adjacent 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three adjacent 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

In this implementation manner, the indication can indicate the preamble puncturing information with the highest or higher probability of being punctured within 80 MHz, thereby helping to improve the flexibility of the preamble puncturing indication and reducing the bit overhead required for the indication. .

In another optional implementation manner, the preamble puncturing information in 80 MHz includes one or more of the following configuration or pre-defined through signaling:

One of 20 MHz within the 80 MHz;

Or 40MHz with the lowest frequency in the 80MHz;

Or 40MHz of the intermediate frequency within the 80MHz;

Or 40MHz with the highest frequency within the 80MHz;

Or the 80MHz;

Or, the preamble within 80 MHz is not punctured.

In this implementation manner, the indication can indicate the preamble puncturing information with the highest or higher probability of being punctured within 80 MHz, which can further reduce the bit overhead required for the indication.

As shown in Table 4, each indication in the preamble puncturing indication information can respectively indicate the preamble puncturing conditions corresponding to each index in Table 4. For example, based on the channel distribution diagram shown in Figure 7, the size and location of the preamble puncturing corresponding to each index in Table 4 are shown in Figure 22, where the size and location of the preamble puncturing corresponding to index 6 is channel 2. And channel 3 can also become 40MHz of the intermediate frequency within the 80MHz. Correspondingly, based on the resource unit distribution schematic diagram shown in FIG. 8, the size and position of the preamble puncturing corresponding to each index in Table 4 are shown in FIG. 23. Optionally, if the preamble puncturing indication information does not indicate no puncturing, the preamble puncturing information shown in Table 4 can be indicated by using 3-bit preamble puncturing indication information.

Table 4 Index table of preamble puncturing indication information in 80Mhz

The following describes the preamble puncturing information corresponding to the preamble puncturing indication information with reference to FIG. 22 or FIG. 23 and the indexes shown in Table 3 and Table 4 as examples.

The bandwidth of the data packet is 240 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the preamble puncturing information within 160 MHz with the lowest frequency among 240 MHz; the second The indication is used to indicate the preamble puncturing information in the 80MHz with the highest frequency among 240MHz. It can be seen that, based on Table 3 and Table 4, for multiple resource units on a 240 MHz bandwidth, only the preamble puncturing indication information occupying 8 bits is used to indicate.

For example, based on Table 3 and Table 4, the bandwidth of the data packet is 240MHz. As shown in Figure 24, the first indication in the preamble puncturing information is 0111 and the second indication is 0000. Then, the station will follow the first indication and Table 3. , The size and position of the preamble puncturing in the lowest frequency 160MHz can be determined as: as shown in Figure 24, the fourth 20MHz in the lowest frequency 160MHz; the station can determine the highest frequency 80MHz according to the second instruction and Table 4 The size and position of the inner preamble puncturing are: as shown in Figure 22, the first 20MHz within the highest frequency 80MHz; furthermore, the station can send or receive data packets on the remaining channels or resource units within 240MHz.

For another example, as shown in Figure 25, assuming that the first indication in the preamble puncturing indication information is 1000 and the second indication is 0000, then the station can determine the size and position of the preamble puncturing according to the first indication and Table 3. : As shown in Figure 14, the grid-filled 40MHz within 160MHz with the lowest frequency; and the site can determine the size and position of the preamble puncturing according to the second indication and Table 4 as follows: As shown in Figure 25, the highest frequency is 80MHz The inner grid is filled with 20MHz; further, the station can send or receive data packets on the remaining channels or resource units within 240MHz, such as the channel or resource unit without grid filling in FIG. 14.

For another example, as shown in Figure 26, assuming that the first indication in the preamble puncturing indication information is 0111 and the second indication is 0100, then the station can determine the size and position of the preamble puncturing according to the first indication and Table 3 as : As shown in Figure 24, the grid fills 20MHz within 160MHz with the lowest frequency; and the site can determine the size and position of the preamble puncturing according to the second indication and Table 2 as follows: As shown in Figure 26, the highest frequency is 80MHz The grid fills 40MHz within the grid; furthermore, the station can send or receive data packets on the remaining channels or resource units within 240MHz, such as the channel or resource unit without grid fill in FIG. 24.

Optionally, the bandwidth of the data packet is 240 MHz, and in the preamble puncturing indication information, the first indication is used to indicate the preamble puncturing information within 160 MHz with the lowest frequency among 240 MHz; the second indication is used for Indicates the preamble puncturing information in the 80MHz with the highest frequency among 240MHz.

The first indication may be used to indicate the preamble puncturing information within the lowest frequency of 240 MHz; the second indication may be used to indicate the preamble puncturing information within the highest frequency of 160 MHz in 240 MHz.

When the bandwidth of the data packet is 160 MHz, the indication mode of the preamble puncturing indication information may include the following optional implementation modes.

In an optional implementation manner, the preamble puncturing indication information may include an indication, such as the first indication. The first indication may indicate the preamble puncturing information based on Table 3, thereby helping to save indication overhead.

In another optional implementation manner, the preamble puncturing indication information may include two indications, and the preamble puncturing information is also indicated based on Table 3, so that one of the indications may be a reserved value, or an arbitrary value, or The station can ignore the indicated value. It can be seen that this implementation manner is beneficial for adopting a unified structure of the preamble puncturing indication information for different bandwidths.

In yet another optional implementation manner, the preamble puncturing indication information includes two indications, and the two indications may respectively indicate the size and position of the hole within 80 MHz. For example, the preamble puncturing indication information includes a first indication and a second indication. The first indication is used to indicate the preamble puncturing information in the 80 MHz with the lowest frequency among 160 MHz; the second indication is used to indicate the 80 MHz with the highest frequency among 160 MHz. The leading code puncturing information.

In the embodiment of this application, the bandwidth can support one or more preamble puncturing, that is, there is one hole or multiple holes on the bandwidth, and the indication method described in the embodiment of this application can be used for each hole. instruct. Optionally, the plurality of holes may be defined as continuous holes. For example, the bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the preamble puncturing information of the first hole in the 160 MHz; Indicates the preamble puncturing information used to indicate the second hole in the 160MHz. Wherein, the preamble puncturing information of the first hole and the second hole can be determined using Table 3 or Table 4.

In the foregoing embodiments, one indication in the preamble puncturing indication information corresponds to one preamble puncturing information, and how the preamble puncturing indication information indicates the bandwidth is 320MHz, 240MHz, 160MHz, or 80MHz.

In addition, this application also provides a way to indicate the preamble puncturing information, that is, the second way mentioned above, which will be described below.

Optionally, for each entry shown in Table 3 or Table 4, the number of item indexes that can be indicated by the preamble puncturing indication information is related to the number of bits of the preamble puncturing indication information. For example, the preamble puncturing indication information can occupy a small number of bits and indicate the index of some entries in Table 3 or Table 4. Correspondingly, the entry index shown in Table 3 or Table 4 can be further expanded. For example, the preamble puncturing information that can be indicated by the preamble puncturing indication information can include any one 20 MHz in the bandwidth and any two 20 MHz components in the bandwidth. 40MHz, and any three 60MHz holes formed by 20MHz, and any four 80MHz holes formed by 20MHz, and so on.

The second type, the size and position of the preamble perforation are indicated separately

Assuming that there is only one hole in the bandwidth, the preamble puncturing indication information includes a first indication and a second indication; the first indication is used to indicate the size of the preamble puncturing; the second indication is used to indicate the preamble The position where the code is punched.

Optionally, the size of the preamble puncturing indicated by the first indication includes one or more of the following: 20 MHz, 40 MHz, 60 MHz, or 80 MHz. For example, the size of the preamble puncture indicated by the first indication may be the size of the hole corresponding to each index in Table 3, respectively. In addition, as shown in Table 5, the first indication may also be used to indicate that the preamble in the bandwidth is not punctured. Optionally, no puncturing of the preamble in the bandwidth can also be indicated by the second indication, which is not limited in this embodiment of the application.

Table 5 hole size

Based on the size of the holes shown in Table 5, the positions of the holes are different for different bandwidths, which will be explained below.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of 20 MHz within the bandwidth of the data packet. For example, for a bandwidth of 320MHz, the position of a 20MHz hole is shown in Figure 18, and there are 16 cases, as shown in Table 6, each index corresponds to the position of a 20MHz hole, so the second indication can indicate the index to inform the station The position of the 20MHz hole within 320MHz.

Table 6 hole position

Correspondingly, for the 240MHz bandwidth, there are 12 situations for the position of the 20MHz hole, and each index corresponds to a position, so the second indication can indicate the index to inform the site of the position of the 20MHz hole within 240MHz. For the 160MHz bandwidth or the 80MHz bandwidth, the position of the 20MHz hole can also be indicated by the second indication.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two within the bandwidth of the data packet One of 40MHz formed by 20MHz.

In another optional implementation manner, the size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two within the bandwidth of the data packet One of the 40MHz formed by two adjacent 20MHz. It can be seen that for the 320MHz bandwidth, there are 15 situations for the positions of any two adjacent 20MHz 40MHz holes, each index corresponds to a position, so the second indication can indicate the index to inform the site that the 40MHz hole is at 320MHz Location within.

Correspondingly, for a bandwidth of 240MHz, there are 11 situations for the positions of any two adjacent 20MHz 40MHz holes, each index corresponds to a position, so the second indication can indicate the index to inform the site that the 40MHz hole is located Position within 240MHz. For the 160MHz bandwidth or the 80MHz bandwidth, the position of the 40MHz hole can also be indicated by the second indication.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidths of the data packet One of the 60MHz formed by 20MHz.

In another optional implementation manner, the size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet One of the 60MHz formed by two adjacent 20MHz.

For example, for a bandwidth of 320MHz, there are 14 situations for the location of a 60MHz hole, one index corresponds to one location, and the second indication may indicate the index to inform the site of the location of the 60MHz hole within 320MHz. The position of the 60MHz hole in the bandwidth of 240MHz, 160MHz or 80MHz can also be indicated by the second indicator.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any of the bandwidths of the data packet One of the 80MHz formed by four 20MHz.

In another optional implementation manner, the size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: in the bandwidth of the data packet One of the 80MHz formed by any four adjacent 20MHz. For example, for a bandwidth of 320MHz, there are 13 situations for the position of any four adjacent 20MHz 80MHz holes. One index corresponds to one position. The second indication can indicate the index to inform the site that the 80MHz hole is within 320MHz. Location.

Among them, for each item described in Table 5, the number of item indexes that can be indicated by the first indication, that is, the number of hole sizes that can be indicated, is related to the number of bits. For example, the first indication may occupy a small number of bits, indicating the index of some entries in Table 5. Correspondingly, for each size of hole, the number of entry indexes of the preamble puncturing position that can be indicated by the second indication is also related to the number of bits of the second indication. The second indication may indicate part or all of the index of entries in Table 6.

In another optional implementation manner, the index table of the preamble puncturing indication information includes various possible preamble puncturing information. That is to say, the number of bits required for the indication in the preamble puncturing indication information needs to be able to respectively indicate various possible preamble puncturing information.

For example, Table 7 includes the preamble of any one 20MHz, two adjacent 20MHz 40MHz, any three adjacent 20MHz 60MHz, and any four adjacent 20MHz 80MHz preamble. Punch information.

Table 7 Index table of preamble puncturing instruction information

Optionally, the preamble puncturing information that can be included in Table 7 is related to the number of bits of the preamble puncturing indication information. If it supports two holes in one bandwidth, it can correspond to the preamble puncturing information included in the extended table 7. Optionally, the preamble puncturing indication information may occupy a small number of bits and indicate some entries in Table 7.

Optionally, the second indication can be based on Table 7 to indicate that the preamble has no puncturing; optionally, the preamble can be indicated by the first indication, that is, an index corresponding to the preamble can be added to Table 6. Without punching.

The third type, the preamble puncturing indication information is combined with the bandwidth indication information to indicate the preamble puncturing information

Different from using the preamble puncturing indication information in the foregoing embodiments to indicate the preamble puncturing information in the bandwidth, this application also provides another method for indicating the preamble puncturing information. In this indication method, the bandwidth indication information and the preamble puncturing indication information jointly indicate the preamble puncturing information in the bandwidth.

In an optional implementation manner, the bandwidth indication information is used to indicate whether there is preamble puncturing in the data packet. If there is preamble puncturing, the bandwidth indication information can indicate the preamble puncturing of the main 80MHz channel; the preamble puncturing indication information is used to indicate the puncturing of other preambles of the data packet, which is helpful for supporting more puncturing. The quantity, for example, indicates a certain hole through the bandwidth field, and the preamble puncturing indication information indicates 1 to 2 holes. If the preamble is not punctured or is in a non-punctured mode, there is no need to indicate the preamble puncturing information in the trigger frame or data packet.

With reference to the embodiment described in Figure 12 above, whether there is preamble puncturing indication information in the trigger frame or data packet, or whether the resource unit allocation subfield is used to indicate the preamble puncturing information is related to the transmission mode of the data packet, or It is related to the transmission mode of the data packet and the bandwidth indication information, or is related to the bandwidth indication information.

Wherein, the bandwidth indication information may be a bandwidth field in a trigger frame or a data packet.

For example, the preamble puncturing situation of the data packet indicated by the bandwidth indication information is shown in Table 8. Each index not only corresponds to the bandwidth of the data packet, but also corresponds to the preamble puncturing situation of the main 80MHz channel. Among them, "80MHz non-punctured mode (without puncturing)" means that the preamble in the bandwidth is not punctured; "80+80MHz" means two 80MHz non-contiguous 160MHz bandwidths; "160+80MHz" means 160MHz Discontinuous 240MHz bandwidth formed with 80MHz. The index is the bandwidth of the data packet corresponding to 6, 8, 10, and 12 and the preamble puncturing situation of the main 80MHz channel, that is, the overall preamble puncturing situation of the data packet. Wherein, when the bandwidth indication information is 6, there is no need to combine the preamble puncturing indication information to send or receive data packets. When the bandwidth indication information is 0, 1, 2, 3, 4, 5, it is clearly indicated that the preamble of the data packet is not punctured. Therefore, it is not necessary to combine the preamble puncturing indication information to send or receive the data packet. When the bandwidth indication information is 7, 8, 9, 10, 11, 12, and 13, it is also necessary to combine the preamble puncturing indication information to further determine the preamble puncturing information of the data packet. Among them, when the bandwidth indication information is 8, 10, 12, the P80 preamble puncturing situation can be clarified based on Table 8, and the preamble puncturing situation of other channels can be determined in conjunction with the preamble puncturing indication information.

It can be seen that the method for indicating preamble puncturing information described in this embodiment can reduce the overhead of preamble puncturing indication information or can indicate when to receive or send data packets based on the preamble puncturing indication information, and when not to The data packet is received or sent based on the preamble puncturing indication information, thereby helping to save signaling overhead.

Table 8 Index table of bandwidth indication information

For each entry described in Table 8, the bandwidth indication information may determine the number of item indexes that can be indicated based on the number of bits. For example, the bandwidth indication information may occupy a small number of bits and indicate some entries in Table 8.

In the embodiment of the present application, the transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission, and the station determines the multiple resource units to be allocated according to the resource unit allocation subfield. Due to OFDMA transmission, the discrete resource units after preamble puncturing need to be allocated to multiple different sites, so the resource unit allocation subfield in the trigger frame or in the signaling field needs to be used to indicate possible resource unit combinations. As shown in Table 9, the resource unit corresponding to index numbers 0 to 67 is a resource unit; the resource unit corresponding to index numbers 68 to 130 is a combination or combination of multiple resource units. It can be seen that for OFDMA transmission, the resource unit allocation subfield can inform each site of the resource unit allocated by indicating these indexes.

In Table 9, corresponding to the index 72-79, in a certain 20MHz in the 80MHz frequency band, the 52-tone RU and the 26-tone RU adjacent to the same side in the 20MHz band are merged. The position of 20MHz in the 80MHz frequency band is related. From left to right corresponds to the 80MHz frequency from low to high. If the 20MHz is on the left side of the center position in the 80MHz frequency band, then the "adjacent on the same side" is "adjacent to the left", if the 20MHz is at the 80MHz To the right of the center position within the frequency band, the "adjacent on the same side" is "adjacent to the right". For example, in conjunction with the resource unit distribution diagram shown in Figure 8, suppose that the 20MHz is the 20MHz with the lowest frequency in 80MHz. Therefore, "adjacent on the same side" means "adjacent to the left", and 52-tone RU is the 20MHz in the 20MHz The second 52-tone RU, then, the 26-tone RU adjacent to the 52-tone RU in the 20 MHz is the second 26-tone RU in the 20 MHz. Therefore, in the 20MHz with the lowest frequency in the 80MHz frequency band, the combination of 52-tone RU and the adjacent 26-tone RU on the same side in the 20MHz band is: the second 26-tone and the second 52-tone RU in the 20MHz The merger.

Correspondingly, the RU merging scheme indicated by the remaining indexes can be determined in conjunction with FIG. 8, and will not be described in detail here.

Table 9 Index table of resource unit allocation subfield

Wherein, when the resource unit allocation subfield occupies 7 bits, the resource unit allocation subfield may indicate some entries in Table 9 or the RU combination situation. That is, for each entry described in Table 9, the resource unit allocation subfield can determine the number of item indexes that can be indicated based on the number of bits. For example, the resource unit allocation subfield can occupy a smaller number of bits, indicating the part in Table 9. entry.

For non-OFDMA transmission, various preamble puncturing information can also be configured in an index table of preamble puncturing indication information. For example, as shown in Table 10. In addition, for each entry described in Table 10, the preamble puncturing indication information can determine the number of item indexes that can be indicated based on the number of bits. For example, the preamble puncturing indication information can occupy a smaller number of bits, indicating that Table 10 Part of the entry in.

Table 10 Index table of preamble puncturing instruction information

Optionally, the RU allocation scheme for OFDMA transmission in Table 9 and the preamble puncturing information for non-OFDMA transmission in Table 10 may be located in an index table, as shown in Table 11. Wherein, Table 11 includes the preamble puncturing information in which the preamble punctured in Table 10 is one hole. Optionally, Table 11 may also include the puncturing information of all the preambles in Table 10. The preamble puncturing indication information can reuse the resource unit allocation subfield, so that it is beneficial for the station to determine the transmission mode of the data packet and the preamble puncturing condition according to the index indicated by the preamble puncturing indication information.

Table 11

For each entry described in Table 11, the resource unit allocation subfield or preamble puncturing indication information can determine the number of entry indexes that can be indicated based on the number of bits. Part of the entry.

For the case of data transmission according to the resource unit allocation subfield, in addition to the direct indication of the resource unit allocation mode corresponding to each index in Table 9, in this application, the resource unit allocation subfield includes a resource unit indication and a resource unit combination indication.

Optionally, when the first resource unit indicated by the resource unit indication is a resource unit containing 2*996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations: no resources Unit is combined with the first resource unit; or a second resource unit is combined with the first resource unit, and the second resource unit is adjacent or non-adjacent to the first resource unit and includes 484 subcarriers Resource unit; or a combination of a third resource unit and the first resource unit, the third resource unit being a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or a combination of the first resource unit and the first resource unit A resource unit containing 996 subcarriers adjacent to the resource unit at a high frequency; or the second resource unit and the third resource unit are combined with the first resource unit.

Wherein, "resource unit adjacent to the first resource unit in low frequency" refers to a resource unit that is adjacent to the first resource unit and has a lower frequency than the first resource unit. As shown in FIG. 8, the 52-tone RU adjacent to the second 106-tone RU low frequency is the second 52-tone RU shown in FIG. 8. Wherein, "resource units adjacent to the first resource unit with high frequency" refer to resource units that are adjacent to the first resource unit and have a higher frequency than the first resource unit. As shown in Fig. 8, the 52-tone RU adjacent to the second 106-tone RU high frequency is the fifth 52-tone RU shown in Fig. 8.

Optionally, when the first resource unit indicated by the resource unit indication is a resource unit containing 996 subcarriers, the resource unit combination indicated by the resource unit combination indication includes one or more of the following: no resource unit There is no combination with the first resource unit; or a second resource unit is combined with the first resource unit, and the second resource unit is adjacent or non-adjacent to the first resource unit and includes 484 subcarriers Resource unit.

Each of the foregoing embodiments introduces the way of indicating the preamble puncturing information. Wherein, in the embodiment shown in FIG. 12, for non-OFDMA transmission, the data packet is sent or received according to the preamble puncturing indication information. Therefore, in an optional implementation manner, in the case of non-OFDMA transmission, the user field in the trigger frame shown in FIG. 10 may not have a resource unit allocation subfield (RU allocation subfield), and there may be preamble puncturing indication information Or preamble puncture info); correspondingly, there may not be a resource unit allocation subfield (RU allocation subfield) in the common field in the super throughput signaling field shown in Figure 11, and there is a preamble puncture indication Information (or preamble puncture info).

In another optional implementation manner, in the case of non-OFDMA transmission, the user field in the trigger frame shown in FIG. 10 can use the RU allocation subfield to indicate the preamble puncturing indication information (or preamble). Code puncturing information, preamble puncture info); correspondingly, the common field in the super throughput signaling field shown in Figure 11 can also use the resource unit allocation subfield (RU allocation subfield) to indicate the preamble puncturing indication information (or Preamble puncture information, preamble puncture info).

In the above-mentioned embodiments provided in this application, the methods provided in the embodiments of this application are introduced from the perspectives of access points and stations. In order to realize the functions in the method provided in the above embodiments of the present application, the access point and the station may include a hardware structure and a software module, and the above functions are realized in the form of a hardware structure, a software module, or a hardware structure plus a software module. One of the above-mentioned functions can be executed in a hardware structure, a software module, or a hardware structure plus a software module.

Please refer to FIG. 27, which is a schematic structural diagram of a data transmission apparatus according to an embodiment of this application. The data transmission device 2700 shown in FIG. 27 may include a communication unit 2701 and a processing unit 2702. The communication unit 2701 may include a sending unit and a receiving unit. The sending unit is used to implement a sending function, the receiving unit is used to implement a receiving function, and the communication unit 2701 may implement a sending function and/or a receiving function. The communication unit can also be described as a transceiving unit.

The data transmission device 2700 may be a site, a device in a site, or an access point or a device in an access point.

In one embodiment, the data transmission device 2700 includes a communication unit 2701 and a processing unit 2702;

The communication unit 2701 is configured to receive preamble puncturing indication information, where the preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes preamble puncturing. The size and position of the hole, or the preamble is not punched;

The communication unit 2701 is further configured to send or receive the data packet according to the preamble puncturing instruction information;

Optionally, the data transmission device further includes a processing unit 2702, which is configured to determine multiple resource units to be allocated according to the preamble puncturing indication information.

It can be seen that the data transmission device can indicate the preamble puncturing condition of the data packet based on the preamble puncturing indication information, and then learn the allocated multi-resource unit. Compared with the current way of directly indicating multiple resource units, the use of the preamble puncturing indication information in this application can save signaling overhead.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

It can be seen that this embodiment can indicate that 40 MHz, 60 MHz, or 80 MHz formed by continuous or non-continuous (adjacent or non-adjacent) 20 MHz is punctured, thereby helping to improve the flexibility of preamble puncturing.

In an optional implementation manner, the 160 MHz includes 80 MHz with the highest frequency and 80 MHz with the lowest frequency, and the indication is also used to indicate the following preamble puncturing information within 160 MHz:

40 MHz of the intermediate frequency within 80 MHz with the highest frequency, or 40 MHz of the intermediate frequency within 80 MHz with the lowest frequency.

In an optional implementation manner, the bandwidth of the data packet is 320 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 320 MHz;

The second indication is used to indicate the preamble puncturing information in the 160 MHz with the highest frequency among the 320 MHz.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

It can be seen that this embodiment can indicate that 40 MHz or 60 MHz formed by continuous or non-continuous (adjacent or non-adjacent) 20 MHz is punctured, thereby helping to improve the flexibility of preamble puncturing.

In an optional implementation manner, the bandwidth of the data packet is 240 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the lowest frequency among the 240 MHz Preamble puncturing information within 160 MHz; the second indication is used to indicate preamble puncturing information within 80 MHz with the highest frequency among the 240 MHz.

In an optional implementation manner, the bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication, and the first indication is used to indicate the preamble puncturing information within the 160 MHz;

In another optional implementation manner, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the lowest frequency among the 160 MHz The 80MHz preamble puncturing information of the 80MHz; the second indication is used to indicate the 80MHz preamble puncturing information with the highest frequency among the 160MHz.

In another optional implementation manner, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the first indication in the 160 MHz. The preamble puncturing information of the hole; the second indication is used to indicate the preamble puncturing information of the second hole in the 160 MHz.

In an optional implementation manner, the preamble puncturing indication information includes a first indication and a second indication; the first indication is used to indicate the size of the preamble puncturing; the second indication is used to indicate the preamble The position where the code is punched.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of the bandwidths of the data packet 20MHz;

The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two of the 40 MHz formed by 20 MHz in the bandwidth of the data packet one;

The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet constitutes 60 MHz of 20 MHz. one;

The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any four of the bandwidth of the data packet constitutes 80 MHz of 20 MHz. one.

In an optional implementation manner, the first indication or the second indication is also used to indicate that the preamble is not punctured.

In an optional implementation manner, when the transmission mode of the data packet is non-orthogonal frequency division multiple access (non-OFDMA) transmission, the station performs the puncturing instruction information according to the preamble, and transmits or The step of receiving the data packet.

In an optional implementation manner, when the transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission, the station allocates subfields according to the resource unit to send or receive the data packet. Correspondingly, the communication unit 2701 is further configured to receive transmission mode indication information, where the transmission mode indication information is used to indicate the transmission mode of the data packet.

It can be seen that for non-OFDMA transmission, the data transmission device can receive or send data packets according to the preamble puncturing indication information; for OFDMA transmission, data packets can be received or sent according to resource unit allocation subfields. Thereby, the overhead required to indicate the allocated resource unit can be reduced.

In an optional implementation manner, the resource unit allocation subfield includes a resource unit indication and a resource unit combination indication, and when the first resource unit indicated by the resource unit indication is a resource unit containing 2*996 subcarriers, The resource unit combination indication is used to indicate one or more of the following resource unit combinations:

No resource unit is combined with the first resource unit;

Or a second resource unit is combined with the first resource unit; the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit;

Or a third resource unit is combined with the first resource unit; the third resource unit is a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or is higher than the first resource unit. Frequency-adjacent resource units containing 996 sub-carriers;

Or the second resource unit, the third resource unit and the first resource unit are combined.

In an optional implementation manner, when the first resource unit indicated by the resource unit indication is a resource unit containing 996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations :

No resource unit is combined with the first resource unit;

Or a second resource unit is combined with the first resource unit, and the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit.

It can be seen that the above two implementation manners can indicate the combination of resource units spanning 160 MHz, thereby helping to improve the flexibility of resource allocation for users.

Among them, the relevant content of the foregoing implementation manners can refer to the relevant content of the foregoing method embodiment. No more details here.

Please refer to FIG. 28, which is a schematic structural diagram of another data transmission device provided by an embodiment of the present application. The data transmission device 2800 may be an access point, a site, a chip, a chip system, or a processor that supports the access point to implement the above method, or a chip or chip that supports the site to implement the above method. System, or processor, etc. The data transmission device can be used to implement the method described in the foregoing method embodiment. For details, please refer to the description in the foregoing method embodiment.

The data transmission device 2800 may include one or more processors 2801. The processor 2801 may be a general-purpose processor or a special-purpose processor. The processor 2801 may be used to control a communication device (for example, an access point, an access point chip, a station, a station chip, etc.), execute a software program, and process data of the software program.

Optionally, the data transmission device 2800 may include one or more memories 2802, on which instructions 2804 may be stored, and the instructions may be executed on the processor 2801, so that the data transmission device 2800 can execute The method described in the above method embodiment. Optionally, the memory 2802 may also store data. The processor 2801 and the memory 2802 can be provided separately or integrated together.

Optionally, the data transmission device 2800 may further include a transceiver 2805 and an antenna 2806. The transceiver 2805 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing the transceiver function. The transceiver 2805 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., to realize the receiving function; the transmitter may be called a transmitter or a sending circuit, etc., to realize the sending function.

In the data transmission device 2800, the transceiver 2805 is used to perform the operations in steps 101 to 103 in FIG. 9; to perform the operations in steps 201 to 204 in FIG. 12 to receive or send related information. The processor 2801 is configured to perform related operations analyzed in steps 203 and 204 in FIG. 12.

It can be seen that the data transmission device can indicate the preamble puncturing condition of the data packet based on the preamble puncturing indication information, and then learn the allocated multi-resource unit. Compared with the current way of directly indicating multiple resource units, the use of the preamble puncturing indication information in this application can save signaling overhead.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

It can be seen that this embodiment can indicate that 40 MHz, 60 MHz, or 80 MHz formed by continuous or non-continuous (adjacent or non-adjacent) 20 MHz is punctured, thereby helping to improve the flexibility of preamble puncturing.

In an optional implementation manner, the 160 MHz includes 80 MHz with the highest frequency and 80 MHz with the lowest frequency, and the indication is also used to indicate the following preamble puncturing information within 160 MHz:

40 MHz of the intermediate frequency within 80 MHz with the highest frequency, or 40 MHz of the intermediate frequency within 80 MHz with the lowest frequency.

In an optional implementation manner, the bandwidth of the data packet is 320 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 320 MHz;

The second indication is used to indicate the preamble puncturing information in the 160 MHz with the highest frequency among the 320 MHz.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

It can be seen that this embodiment can indicate that 40 MHz or 60 MHz formed by continuous or non-continuous (adjacent or non-adjacent) 20 MHz is punctured, thereby helping to improve the flexibility of preamble puncturing.

In an optional implementation manner, the bandwidth of the data packet is 240 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the lowest frequency among the 240 MHz Preamble puncturing information within 160 MHz; the second indication is used to indicate preamble puncturing information within 80 MHz with the highest frequency among the 240 MHz.

In an optional implementation manner, the bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication, and the first indication is used to indicate the preamble puncturing information within the 160 MHz;

In another optional implementation manner, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the lowest frequency among the 160 MHz The 80MHz preamble puncturing information of the 80MHz; the second indication is used to indicate the 80MHz preamble puncturing information with the highest frequency among the 160MHz.

In another optional implementation manner, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the first indication in the 160 MHz. The preamble puncturing information of the hole; the second indication is used to indicate the preamble puncturing information of the second hole in the 160 MHz.

In an optional implementation manner, the preamble puncturing indication information includes a first indication and a second indication; the first indication is used to indicate the size of the preamble puncturing; the second indication is used to indicate the preamble The position where the code is punched.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of the bandwidths of the data packet 20MHz;

The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two of the 40 MHz formed by 20 MHz in the bandwidth of the data packet one;

The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet constitutes 60 MHz of 20 MHz. one;

The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any four of the bandwidth of the data packet constitutes 80 MHz of 20 MHz. one.

In an optional implementation manner, the first indication or the second indication is also used to indicate that the preamble is not punctured.

In an optional implementation manner, when the transmission mode of the data packet is non-orthogonal frequency division multiple access (non-OFDMA) transmission, the station performs the puncturing instruction information according to the preamble, and transmits or The step of receiving the data packet.

In an optional implementation manner, when the transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission, the station allocates subfields according to the resource unit to send or receive the data packet.

It can be seen that for non-OFDMA transmission, the data transmission device can receive or send data packets according to the preamble puncturing indication information; for OFDMA transmission, data packets can be received or sent according to resource unit allocation subfields. Thereby, the overhead required to indicate the allocated resource unit can be reduced.

In an optional implementation manner, the resource unit allocation subfield includes a resource unit indication and a resource unit combination indication, and when the first resource unit indicated by the resource unit indication is a resource unit containing 2*996 subcarriers, The resource unit combination indication is used to indicate one or more of the following resource unit combinations:

No resource unit is combined with the first resource unit;

Or a second resource unit is combined with the first resource unit; the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit;

Or a third resource unit is combined with the first resource unit; the third resource unit is a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or is higher than the first resource unit. Frequency-adjacent resource units containing 996 sub-carriers;

Or the second resource unit, the third resource unit and the first resource unit are combined.

In an optional implementation manner, when the first resource unit indicated by the resource unit indication is a resource unit containing 996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations :

No resource unit is combined with the first resource unit;

Or a second resource unit is combined with the first resource unit, and the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit.

It can be seen that the above two implementation manners can indicate the combination of resource units spanning 160 MHz, thereby helping to improve the flexibility of resource allocation for users.

Among them, the relevant content of the foregoing implementation manners can refer to the relevant content of the foregoing method embodiment. No more details here.

In another possible design, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuits, interfaces, or interface circuits used to implement the receiving and transmitting functions can be separate or integrated. The foregoing transceiver circuit, interface, or interface circuit can be used for code/data reading and writing, or the foregoing transceiver circuit, interface, or interface circuit can be used for signal transmission or transmission.

In another possible design, optionally, the processor 2801 may store an instruction 2803, and the instruction 2803 runs on the processor 2801, so that the communication device 2800 can execute the method described in the foregoing method embodiment. The instruction 2803 may be solidified in the processor 2801. In this case, the processor 2801 may be implemented by hardware.

In yet another possible design, the communication device 2800 may include a circuit, and the circuit may implement the sending or receiving or communication function in the foregoing method embodiment.

The processor and transceiver described in this application can be implemented in integrated circuit (IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (ASIC), printed circuit board ( printed circuit board, PCB), electronic equipment, etc.

The communication device described in the above embodiment may be an access point or a station, but the scope of the communication device described in this application is not limited to this, and the structure of the communication device may not be limited by FIG. 28. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A set of one or more ICs. Optionally, the set of ICs may also include storage components for storing data and instructions;

(3) ASIC, such as a modem (Modem);

(4) Modules that can be embedded in other equipment;

(5) Receivers, smart terminals, wireless devices, handsets, mobile units, vehicle-mounted devices, cloud devices, artificial intelligence devices, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, refer to the schematic diagram of the chip structure shown in FIG. 29. The chip 2900 shown in FIG. 29 includes a processor 2901 and an interface 2902. The number of processors 2901 may be one or more, and the number of interfaces 2902 may be multiple.

For the case where the chip is used to implement the function of the site in the embodiment of the present application:

In an implementation manner, the interface 2902 is configured to receive preamble puncturing indication information. The preamble puncturing indication information includes one or more indications, and one indication corresponds to one preamble puncturing information. Punching information includes the size and position of the preamble punching, or the preamble without punching;

The interface 2902 is further configured to send or receive the data packet according to the preamble puncturing indication information;

Optionally, the data transmission device further includes a processor 2901. The processor 2901 is configured to determine the allocated multiple resource units according to the preamble puncturing indication information.

Optionally, the chip further includes a memory 2903 coupled with the processor 2901, and the memory 2903 is used to store necessary program instructions and data of the terminal device.

It can be seen that the chip can indicate the preamble puncturing status of the data packet based on the preamble puncturing indication information, and then learn the allocated multi-resource unit. Compared with the current way of directly indicating multiple resource units, the use of the preamble puncturing indication information in this application can save signaling overhead.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

One of 20 MHz within the 160 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

Or, the preamble within the 160 MHz is not punctured.

It can be seen that this embodiment can indicate that 40 MHz, 60 MHz, or 80 MHz formed by continuous or non-continuous (adjacent or non-adjacent) 20 MHz is punctured, thereby helping to improve the flexibility of preamble puncturing.

In an optional implementation manner, the 160 MHz includes 80 MHz with the highest frequency and 80 MHz with the lowest frequency, and the indication is also used to indicate the following preamble puncturing information within 160 MHz:

40 MHz of the intermediate frequency within 80 MHz with the highest frequency, or 40 MHz of the intermediate frequency within 80 MHz with the lowest frequency.

In an optional implementation manner, the bandwidth of the data packet is 320 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 320 MHz;

The second indication is used to indicate the preamble puncturing information in the 160 MHz with the highest frequency among the 320 MHz.

In an optional implementation manner, the indication is used to indicate one or more of the following preamble puncturing information within 80 MHz:

One of 20 MHz within the 80 MHz;

Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

Or, the preamble within 80 MHz is not punctured.

It can be seen that this embodiment can indicate that 40 MHz or 60 MHz formed by continuous or non-continuous (adjacent or non-adjacent) 20 MHz is punctured, thereby helping to improve the flexibility of preamble puncturing.

In an optional implementation manner, the bandwidth of the data packet is 240 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the lowest frequency among the 240 MHz Preamble puncturing information within 160 MHz; the second indication is used to indicate preamble puncturing information within 80 MHz with the highest frequency among the 240 MHz.

In an optional implementation manner, the bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication, and the first indication is used to indicate the preamble puncturing information within the 160 MHz;

In another optional implementation manner, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the lowest frequency among the 160 MHz The 80MHz preamble puncturing information of the 80MHz; the second indication is used to indicate the 80MHz preamble puncturing information with the highest frequency among the 160MHz.

In another optional implementation manner, the bandwidth of the data packet is 160 MHz, the preamble puncturing indication information includes a first indication and a second indication, and the first indication is used to indicate the first indication in the 160 MHz. The preamble puncturing information of the hole; the second indication is used to indicate the preamble puncturing information of the second hole in the 160 MHz.

In an optional implementation manner, the preamble puncturing indication information includes a first indication and a second indication; the first indication is used to indicate the size of the preamble puncturing; the second indication is used to indicate the preamble The position where the code is punched.

In an optional implementation manner, the size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of the bandwidths of the data packet 20MHz;

The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two of the 40 MHz formed by 20 MHz in the bandwidth of the data packet one;

The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet constitutes 60 MHz of 20 MHz. one;

The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any four of the bandwidth of the data packet constitutes 80 MHz of 20 MHz. one.

In an optional implementation manner, the first indication or the second indication is also used to indicate that the preamble is not punctured.

In an optional implementation manner, when the transmission mode of the data packet is non-orthogonal frequency division multiple access (non-OFDMA) transmission, the station performs the puncturing instruction information according to the preamble, and transmits or The step of receiving the data packet.

In an optional implementation manner, when the transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission, the station allocates subfields according to the resource unit to send or receive the data packet. Correspondingly, the interface 2902 is also used to receive transmission mode indication information, where the transmission mode indication information is used to indicate the transmission mode of the data packet.

It can be seen that for non-OFDMA transmission, the data transmission device can receive or send data packets according to the preamble puncturing indication information; for OFDMA transmission, data packets can be received or sent according to resource unit allocation subfields. Thereby, the overhead required to indicate the allocated resource unit can be reduced.

In an optional implementation manner, the resource unit allocation subfield includes a resource unit indicator and a resource unit combination indicator, and when the first resource unit indicated by the resource unit indicator is a resource unit containing 2*996 subcarriers, The resource unit combination indication is used to indicate one or more of the following resource unit combinations:

No resource unit is combined with the first resource unit;

Or the second resource unit is combined with the first resource unit; the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit;

Or a third resource unit is combined with the first resource unit; the third resource unit is a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or is higher than the first resource unit. Frequency-adjacent resource units containing 996 sub-carriers;

Or the second resource unit, the third resource unit and the first resource unit are combined.

In an optional implementation manner, when the first resource unit indicated by the resource unit indication is a resource unit containing 996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations :

No resource unit is combined with the first resource unit;

Or a second resource unit is combined with the first resource unit, and the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit.

It can be seen that the above two implementation manners can indicate the combination of resource units across 160 MHz, thereby helping to improve the flexibility of allocating resources to users.

Among them, the relevant content of the foregoing implementation manners can refer to the relevant content of the foregoing method embodiment. No more details here.

Those skilled in the art may also understand that various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of the two. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be construed as going beyond the protection scope of the embodiments of the present application.

The present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer-readable storage medium is executed by a computer, the function of any of the foregoing method embodiments is realized.

This application also provides a computer program product, which, when executed by a computer, realizes the functions of any of the foregoing method embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.

A person of ordinary skill in the art can understand that the various digital numbers such as first and second involved in the present application are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application, but also indicate a sequence.

The corresponding relationships shown in the tables in this application can be configured or pre-defined. The value of the information in each table is only an example, and can be configured to other values, which is not limited in this application. When configuring the correspondence between the information and the parameters, it is not necessarily required to configure all the correspondences indicated in the tables. For example, in the table in this application, the corresponding relationship shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, and so on. The names of the parameters shown in the titles in the above tables may also be other names that can be understood by the communication device, and the values or expressions of the parameters may also be other values or expressions that can be understood by the communication device. When the above tables are implemented, other data structures can also be used, such as arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables. Wait.

The pre-definition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, curing, or pre-fired.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (39)

1. A data transmission method, characterized in that it comprises:

   Receiving preamble puncturing indication information, where the preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes the size and position of the preamble puncturing, Or the leading code has no perforation;

   According to the preamble puncturing instruction information, data packets are sent or received.
2. The method according to claim 1, wherein the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

   One of 20 MHz within the 160 MHz;

   Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

   Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

   Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

   Or, the preamble within the 160 MHz is not punctured.
3. The method according to claim 2, wherein the 160 MHz includes 80 MHz with the highest frequency and 80 MHz with the lowest frequency, and the indication is further used to indicate the following preamble puncturing information within 160 MHz:

   40 MHz of the intermediate frequency within 80 MHz with the highest frequency, or 40 MHz of the intermediate frequency within 80 MHz with the lowest frequency.
4. The method according to claim 2 or 3, wherein:

   The bandwidth of the data packet is 320 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

   The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 320 MHz;

   The second indication is used to indicate the preamble puncturing information in the 160 MHz with the highest frequency among the 320 MHz.
5. The method according to any one of claims 1 to 3, wherein the indication is used to indicate one or more of the following preamble puncturing information within 80 MHz:

   One of 20 MHz within the 80 MHz;

   Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

   Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

   Or, the preamble within 80 MHz is not punctured.
6. The method according to claim 3 or 5, wherein:

   The bandwidth of the data packet is 240 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

   The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 240 MHz;

   The second indication is used to indicate the preamble puncturing information in the 80 MHz with the highest frequency among the 240 MHz.
7. The method of claim 2, wherein:

   The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication,

   The first indication is used to indicate preamble puncturing information within the 160 MHz.
8. The method of claim 5, wherein:

   The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

   The first indication is used to indicate the preamble puncturing information of the 80 MHz with the lowest frequency among the 160 MHz;

   The second indication is used to indicate the 80 MHz preamble puncturing information with the highest frequency among the 160 MHz.
9. The method of claim 3, wherein:

   The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

   The first indication is used to indicate the preamble puncturing information of the first hole in the 160MHz;

   The second indication is used to indicate the preamble puncturing information of the second hole in the 160 MHz.
10. The method of claim 1, wherein:

    The preamble puncturing indication information includes a first indication and a second indication;

    The first indication is used to indicate the size of the preamble puncturing;

    The second indication is used to indicate the position of the preamble puncturing.
11. The method of claim 10, wherein:

    The size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of 20 MHz within the bandwidth of the data packet;

    The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two of the 40 MHz formed by 20 MHz in the bandwidth of the data packet one;

    The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet constitutes 60 MHz of 20 MHz. one;

    The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any four of the bandwidth of the data packet constitutes 80 MHz of 20 MHz. one.
12. The method according to claim 11, wherein the first indication or the second indication is also used to indicate that the preamble is not punctured.
13. The method according to any one of claims 1 to 12, wherein when the transmission mode of the data packet is non-orthogonal frequency division multiple access (non-OFDMA) transmission, performing the Hole indication information, the step of sending or receiving the data packet.
14. The method according to any one of claims 1 to 13, wherein the method further comprises:

    When the transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission, the subfield is allocated according to the resource unit to send or receive the data packet.
15. The method according to claim 13 or 14, wherein the method further comprises:

    Receiving transmission mode indication information, where the transmission mode indication information is used to indicate a transmission mode of the data packet.
16. The method according to claim 14 or 15, wherein the resource unit allocation subfield includes a resource unit indication and a resource unit combination indication,

    When the first resource unit indicated by the resource unit indicator is a resource unit including 2*996 subcarriers, the resource unit combination indicator is used to indicate one or more of the following resource unit combinations:

    No resource unit is combined with the first resource unit;

    Or the second resource unit is combined with the first resource unit; the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit;

    Or a third resource unit is combined with the first resource unit; the third resource unit is a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or is higher than the first resource unit. Frequency-adjacent resource units containing 996 sub-carriers;

    Or the second resource unit, the third resource unit and the first resource unit are combined.
17. The method according to claim 14 or 15, characterized in that:

    When the first resource unit indicated by the resource unit indication is a resource unit including 996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations:

    No resource unit is combined with the first resource unit;

    Or a second resource unit is combined with the first resource unit, and the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit.
18. A data transmission device, characterized in that it comprises a processor, a memory and a transceiver;

    The transceiver is configured to receive preamble puncturing indication information, and send or receive data packets according to the preamble puncturing indication information; the preamble puncturing indication information is used to indicate the preamble puncturing of the data packet Information, the preamble puncturing information includes the size and position of the preamble puncturing, or the preamble is not punctured;

    The memory is used to store program code;

    The processor is configured to call the program code from the memory to execute the method according to any one of claims 1 to 17.
19. A chip system, characterized by comprising: a processor and an interface;

    The interface is configured to receive preamble puncturing indication information, where the preamble puncturing indication information includes one or more indications, one indicating the preamble puncturing information corresponding to a data packet, and the preamble puncturing information includes The size and position of the preamble perforation, or the preamble without perforation;

    The processor is configured to determine a plurality of allocated resource units according to the preamble puncturing indication information;

    The interface is also used to send or receive data packets on the multiple resource units.
20. A computer-readable storage medium, wherein the computer-readable storage medium is used to store instructions, and when the instructions are executed, the method according to any one of claims 1 to 17 is realized.
21. A data transmission device is characterized in that it comprises:

    The communication unit is configured to receive preamble puncturing indication information, where the preamble puncturing indication information includes one or more indications, one indication corresponds to one preamble puncturing information, and the preamble puncturing information includes preamble puncturing. The size and position of the, or the preamble has no perforation;

    A processing unit, configured to determine multiple resource units to be allocated according to the preamble indication information;

    The communication unit is further configured to send or receive data packets on the multiple resource units.
22. The apparatus according to claim 21, wherein the indication is used to indicate one or more of the following preamble puncturing information within 160 MHz:

    One of 20 MHz within the 160 MHz;

    Or one of the 40 MHz formed by any two 20 MHz within the 160 MHz;

    Or one of the 60 MHz formed by any three 20 MHz within the 160 MHz;

    Or one of the 80 MHz formed by any four 20 MHz within the 160 MHz;

    Or, the preamble within the 160 MHz is not punctured.
23. The apparatus according to claim 22, wherein the 160 MHz includes the highest frequency 80 MHz and the lowest frequency 80 MHz, and the indication is further used to indicate the following preamble puncturing information within 160 MHz:

    40 MHz of the intermediate frequency within 80 MHz with the highest frequency, or 40 MHz of the intermediate frequency within 80 MHz with the lowest frequency.
24. The device according to claim 22 or 23, wherein:

    The bandwidth of the data packet is 320 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

    The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 320 MHz;

    The second indication is used to indicate the preamble puncturing information in the 160 MHz with the highest frequency among the 320 MHz.
25. The apparatus according to any one of claims 21 to 23, wherein the indication is used to indicate one or more of the following preamble puncturing information within 80 MHz:

    One of 20 MHz within the 80 MHz;

    Or one of the 40 MHz formed by any two 20 MHz within the 80 MHz;

    Or one of the 60 MHz formed by any three 20 MHz within the 80 MHz;

    Or, the preamble within 80 MHz is not punctured.
26. The device according to claim 23 or 25, wherein:

    The bandwidth of the data packet is 240 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

    The first indication is used to indicate the preamble puncturing information in the 160 MHz with the lowest frequency among the 240 MHz;

    The second indication is used to indicate the preamble puncturing information in the 80 MHz with the highest frequency among the 240 MHz.
27. The device of claim 22, wherein:

    The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication,

    The first indication is used to indicate preamble puncturing information within the 160 MHz.
28. The device of claim 25, wherein:

    The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

    The first indication is used to indicate the preamble puncturing information of the 80 MHz with the lowest frequency among the 160 MHz;

    The second indication is used to indicate the 80 MHz preamble puncturing information with the highest frequency among the 160 MHz.
29. The device of claim 23, wherein:

    The bandwidth of the data packet is 160 MHz, and the preamble puncturing indication information includes a first indication and a second indication,

    The first indication is used to indicate the preamble puncturing information of the first hole in the 160MHz;

    The second indication is used to indicate the preamble puncturing information of the second hole in the 160 MHz.
30. The device of claim 21, wherein:

    The preamble puncturing indication information includes a first indication and a second indication;

    The first indication is used to indicate the size of the preamble puncturing;

    The second indication is used to indicate the position of the preamble puncturing.
31. The device of claim 30, wherein:

    The size of the preamble puncturing indicated by the first indication is 20 MHz, and the position of the preamble puncturing includes one or more of the following: one of 20 MHz within the bandwidth of the data packet;

    The size of the preamble puncturing indicated by the first indication is 40 MHz, and the position of the preamble puncturing includes one or more of the following: any two of the 40 MHz formed by 20 MHz in the bandwidth of the data packet one;

    The size of the preamble puncturing indicated by the first indication is 60 MHz, and the position of the preamble puncturing includes one or more of the following: any three of the bandwidth of the data packet constitutes 60 MHz of 20 MHz. one;

    The size of the preamble puncturing indicated by the first indication is 80 MHz, and the position of the preamble puncturing includes one or more of the following: any four of the bandwidth of the data packet constitutes 80 MHz of 20 MHz. one.
32. The apparatus according to claim 31, wherein the first indication or the second indication is also used to indicate that the preamble is not punctured.
33. The device according to any one of claims 21 to 32, wherein the processing unit is configured to execute the said data packet when the transmission mode of the data packet is non-orthogonal frequency division multiple access (non-OFDMA) transmission The operation of the allocated multiple resource units is determined according to the preamble puncturing indication information.
34. The device according to any one of claims 21 to 33, wherein the processing unit is further configured to allocate the data packet according to the resource unit when the transmission mode of the data packet is Orthogonal Frequency Division Multiple Access (OFDMA) transmission The subfield determines the multiple resource units to be allocated.
35. The device according to claim 33 or 34, wherein:

    The communication unit is further configured to receive transmission mode indication information, where the transmission mode indication information is used to indicate a transmission mode of the data packet.
36. The apparatus according to claim 34 or 35, wherein the resource unit allocation subfield includes a resource unit indication and a resource unit combination indication,

    When the first resource unit indicated by the resource unit indicator is a resource unit including 2*996 subcarriers, the resource unit combination indicator is used to indicate one or more of the following resource unit combinations:

    No resource unit is combined with the first resource unit;

    Or the second resource unit is combined with the first resource unit; the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit;

    Or a third resource unit is combined with the first resource unit; the third resource unit is a resource unit containing 996 subcarriers adjacent to the first resource unit at a low frequency, or is higher than the first resource unit. Frequency-adjacent resource units containing 996 sub-carriers;

    Or the second resource unit, the third resource unit and the first resource unit are combined.
37. The device according to claim 34 or 35, wherein:

    When the first resource unit indicated by the resource unit indication is a resource unit including 996 subcarriers, the resource unit combination indication is used to indicate one or more of the following resource unit combinations:

    No resource unit is combined with the first resource unit;

    Or a second resource unit is combined with the first resource unit, and the second resource unit is a resource unit containing 484 subcarriers that is adjacent or non-adjacent to the first resource unit.
38. A program, characterized in that, when the program is run by a computer, the method according to claims 1 to 17 is realized.
39. A computer program product containing instructions, which is characterized in that when it runs on a computer, the method according to claims 1 to 17 is realized.

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